Monday, December 27, 2010
Thursday, Dec 16, 2010
Showed Hewitt video on electric current. Demos with lights for series and parallel circuits.
Wednesday, Dec 15, 2010
Went over electrostatics lab sheet, redoing many of the demos. Handed back reading assignment, went over it, and re-collected it.
Showed demo of rotating a 2x4 with a charged rod.
Showed demo of rotating a 2x4 with a charged rod.
Tuesday, Dec 14, 2010
Students did electrostatics mini-labs and worked on reading assignment on Electrostatics.
Monday, December 13, 2010
Monday, Dec 13, 2010
Continued with Relativity:
Showed using long spaceship example that events at different locations that occur at the same time for one observer do not necessary occur at the same time for an observer moving at constant speed with respect to that observer.
Showed bouncing light clock and how to get time dilation from this set-up.
Students worked out time dilation graphically.
Derived time dilation using Pythagorean Theorem
Tried using light clock to get length contraction.
Did example of traveling to distant star at fast speed and how time dilation and length contraction are related.
Discussed relativistic mass increase using Andy and Bob example and pushing spacecraft examples.
Simply stated E = mc^2 but worked out how much energy in 1 kg of matter and that it was more energy than lifting 100x the population of the Earth to a height of 100 m.
Kindergarten approach to general relativity. Light has energy, energy and mass are related, mass is affected by a gravitational field, light is bent in a gravitational field, light moves at the same speed for each observer. Therefore, the closer to the source of gravity, the slower the clock will tick.
Showed Hewitt video on Relativity.
Really didn't go over very well. MANY students paid no attention and carried on side conversations the entire class. Told students I would go back to having them do experiments rather than have me talk.
Showed using long spaceship example that events at different locations that occur at the same time for one observer do not necessary occur at the same time for an observer moving at constant speed with respect to that observer.
Showed bouncing light clock and how to get time dilation from this set-up.
Students worked out time dilation graphically.
Derived time dilation using Pythagorean Theorem
Tried using light clock to get length contraction.
Did example of traveling to distant star at fast speed and how time dilation and length contraction are related.
Discussed relativistic mass increase using Andy and Bob example and pushing spacecraft examples.
Simply stated E = mc^2 but worked out how much energy in 1 kg of matter and that it was more energy than lifting 100x the population of the Earth to a height of 100 m.
Kindergarten approach to general relativity. Light has energy, energy and mass are related, mass is affected by a gravitational field, light is bent in a gravitational field, light moves at the same speed for each observer. Therefore, the closer to the source of gravity, the slower the clock will tick.
Showed Hewitt video on Relativity.
Really didn't go over very well. MANY students paid no attention and carried on side conversations the entire class. Told students I would go back to having them do experiments rather than have me talk.
Friday, Dec 10, 2010
Handed back test and went over it.
Some students told me they wanted to cover relativity so I gave it a try. Started going through my gedanken but that didn't work well.
Developed relative velocity equation for high speeds.
Asked students to look at end of chapter 15 questions.
Many students just didn't seem to care.
Some students told me they wanted to cover relativity so I gave it a try. Started going through my gedanken but that didn't work well.
Developed relative velocity equation for high speeds.
Asked students to look at end of chapter 15 questions.
Many students just didn't seem to care.
Wednesday, Dec 8, 2010
Review for test. Did problems on board for torque and balancing as well as problems using Newton's Law of Gravitation. Students worked on Quia for last half of class.
Tuesday, Dec 7, 2010
Showed a bit of the Hewitt video on tides. Students worked problems using the scientific notation keys on their calculators, calculating forces and tidal forces of Sun and Moon on Earth.
Thursday, December 2, 2010
Friday, Dec 3, 2010
Hand out Tiger Bathroom passes to cut down abuse of Bathroom pass
Go over Kepler's Worksheet
Hand out Concept Map
Show weird Orbit of Mercury
HW - Demonstrate weird orbit of Mercury to parents
Test on Tuesday
Didn't get to this: Show unicycle - gyroscopic stability
or show Hewitt tides video.
Go over Kepler's Worksheet
Hand out Concept Map
Show weird Orbit of Mercury
HW - Demonstrate weird orbit of Mercury to parents
Test on Tuesday
Didn't get to this: Show unicycle - gyroscopic stability
or show Hewitt tides video.
Thursday, Dec 2, 2010
Finished Hewitt video on Gravity
Went over Reading Assignments for Circular Motion (9.1, 9.3)
Asked students to make a concept map for material since last test.
I put a sketch on board.
Went over Reading Assignments for Circular Motion (9.1, 9.3)
Asked students to make a concept map for material since last test.
I put a sketch on board.
Wednesday, December 1, 2010
Wed, Dec 1, 2010
Students finished Orbit of Mars Lab.
Handed our Kepler's Laws worksheet for homework - due tomorrow.
Handed our Kepler's Laws worksheet for homework - due tomorrow.
Tuesday, November 30, 2010
Tuesday, Nov 30, 2010
Students started Orbit of Mars lab.
Many got off to a slow start since I told them they had to read the instructions (instead of me telling them what to do) so I told them they could work on the lab tomorrow in class.
Many got off to a slow start since I told them they had to read the instructions (instead of me telling them what to do) so I told them they could work on the lab tomorrow in class.
Monday, November 29, 2010
Monday, Nov 29, 2010
Asked if there were any demos for rotational inertia.
TW brought in different diameter jars. He was going to fill them with equal masses of water and see which rolled faster down a ramp. I asked if he had tried racing them without water and he said the speeds were pretty much the same.
To test this we tried racing pennies and quarters. Didn't work well since they kept falling over. Used u-tack to stick 4 of each together and raced them. Not completely clear, but they were pretty close.
Started Hewitt video on Gravity.
Stopped for:
a. discussion of "Universal" and how it changed the world view
b. Did several examples using Newton's Law for finding the force with varying masses and distances. Showed how to do the substitution math.
c. How different dimension worlds would affect the Intensity vs distance relationship
d. Students calculated G*Me/Re^2
Postponed HW (Kepler's Law worksheet) until tomorrow.
TW brought in different diameter jars. He was going to fill them with equal masses of water and see which rolled faster down a ramp. I asked if he had tried racing them without water and he said the speeds were pretty much the same.
To test this we tried racing pennies and quarters. Didn't work well since they kept falling over. Used u-tack to stick 4 of each together and raced them. Not completely clear, but they were pretty close.
Started Hewitt video on Gravity.
Stopped for:
a. discussion of "Universal" and how it changed the world view
b. Did several examples using Newton's Law for finding the force with varying masses and distances. Showed how to do the substitution math.
c. How different dimension worlds would affect the Intensity vs distance relationship
d. Students calculated G*Me/Re^2
Postponed HW (Kepler's Law worksheet) until tomorrow.
Sunday, November 21, 2010
Wednesday, Nov 24, 2010
Competition of balancing pencil
Gave each person one pencil, 3 sheets of newspaper, and 6 inches of tape. They had to make a device that they could balance on their finger without touching the newspaper.
Had competition in groups of 4, then did winners.
Asked students to write this up in their journals.
Showed parts of Hewitt video on Rotation - especially the two examples in the introduction. Offered extra credit for best demonstration of rotational inertia for falling rods.
No homework over Thanksgiving holiday.
Gave each person one pencil, 3 sheets of newspaper, and 6 inches of tape. They had to make a device that they could balance on their finger without touching the newspaper.
Had competition in groups of 4, then did winners.
Asked students to write this up in their journals.
Showed parts of Hewitt video on Rotation - especially the two examples in the introduction. Offered extra credit for best demonstration of rotational inertia for falling rods.
No homework over Thanksgiving holiday.
Monday, Nov 22, 2010
Go over results from Circular Motion Lab
Collect Lab Reports
Derive circular motion equation from octagons
Show examples of centripetal force
Jumped ahead and introduced Newton's Law of Gravitation, showed it was a centripetal force, and did example of problems of docking spaceships in orbit about the Earth.
Collect Lab Reports
Derive circular motion equation from octagons
Show examples of centripetal force
Jumped ahead and introduced Newton's Law of Gravitation, showed it was a centripetal force, and did example of problems of docking spaceships in orbit about the Earth.
Friday, November 19, 2010
Thursday, November 18, 2010
Thursday, Nov 18, 2010
Had students cut out shapes and find the center of mass of their shape.
Showed Hewitt video on Center of Gravity.
Showed broom example.
Showed top and spinning cross from Saturday Market.
Students tried to spin pennies on coat hangers.
Showed Hewitt video on Center of Gravity.
Showed broom example.
Showed top and spinning cross from Saturday Market.
Students tried to spin pennies on coat hangers.
Wednesday, November 17, 2010
Wednesday, Nov 17, 2010
Went over RA 11.1 on torque
Many students either did not do the book problems or did not understand them.
Had students go to the board and work them.
Center of Gravity demos:
1. Stand up from being seated in chair
2. Stand two footsteps back from wall, put forehead on wall, try to pick up chair.
3. Stand with toes against wall, try to stand on toes
4. Balancing hammer
5. Balancing eagle
6. Belt demo
7. Angled ramp, double cone falls up ramp
8. Block competition
Showed people who were absent how spool of science works.
Many students either did not do the book problems or did not understand them.
Had students go to the board and work them.
Center of Gravity demos:
1. Stand up from being seated in chair
2. Stand two footsteps back from wall, put forehead on wall, try to pick up chair.
3. Stand with toes against wall, try to stand on toes
4. Balancing hammer
5. Balancing eagle
6. Belt demo
7. Angled ramp, double cone falls up ramp
8. Block competition
Showed people who were absent how spool of science works.
Tuesday, November 16, 2010
Tuesday, Nov 16, 2010
Went over demos from yesterday.
Talked about effect of melting ice cap and sediment discharge from Mississippi River on length of day.
Meter stick balances at center of mass.
Torque lecture
Demo: giant spool
Did several simple torque problems on board.
Handed out RA 11.1 on torque, due tomorrow along with problems from end of chapter 11.
Talked about effect of melting ice cap and sediment discharge from Mississippi River on length of day.
Meter stick balances at center of mass.
Torque lecture
Demo: giant spool
Did several simple torque problems on board.
Handed out RA 11.1 on torque, due tomorrow along with problems from end of chapter 11.
Monday, November 15, 2010
Monday, November 15, 2010
Handed back tests and went over any questions. Numbers on test are percent out of 100 and number correct out of 43. In my gradebook I scaled the test scores and entered them out of 70
Handed back journals. The maximum score was 60 but I put them out of 50 in my gradebook. I talked about the journals. The main purpose is to have a description of the demos and how they relate to the concepts. Several students are just using the journal as a notebook and ignoring the demos all together. I asked for more focus on the demos for this quarter.
Angular equivalents to linear terms:
velocity <=> angular velocity (omega)
inertia (mass) <=> rotational inertia (I)
momentum (p=m*v) <=> angular momentum = I * omega
kinetic energy = 1/2 m * v2 <=> rotational KE = 1/2 I omega2
Day at the Races
Demos: Baseball bat and ankle weights
Race 1: Hoop vs Disc
Race 2: Plastic disks with ball bearings inside
Race 3: Shiny ball vs Go Car
Race 4: Broth vs Beans
Students voted on outcomes
Conservation of momentum <=> conservation of angular momentum
If no net external torque acts on the system (if nothing messes with the system from outside) then there is no change in the angular momentum of the system.
Demo: weights on spinning plate
Handed out RA 11.2 due tomorrow
Students will also write up demos in their journals
Finished with bicycle wheel on spinning platform and then gyroscopic bicycle wheel.
Handed back journals. The maximum score was 60 but I put them out of 50 in my gradebook. I talked about the journals. The main purpose is to have a description of the demos and how they relate to the concepts. Several students are just using the journal as a notebook and ignoring the demos all together. I asked for more focus on the demos for this quarter.
Angular equivalents to linear terms:
velocity <=> angular velocity (omega)
inertia (mass) <=> rotational inertia (I)
momentum (p=m*v) <=> angular momentum = I * omega
kinetic energy = 1/2 m * v2 <=> rotational KE = 1/2 I omega2
Day at the Races
Demos: Baseball bat and ankle weights
Race 1: Hoop vs Disc
Race 2: Plastic disks with ball bearings inside
Race 3: Shiny ball vs Go Car
Race 4: Broth vs Beans
Students voted on outcomes
Conservation of momentum <=> conservation of angular momentum
If no net external torque acts on the system (if nothing messes with the system from outside) then there is no change in the angular momentum of the system.
Demo: weights on spinning plate
Handed out RA 11.2 due tomorrow
Students will also write up demos in their journals
Finished with bicycle wheel on spinning platform and then gyroscopic bicycle wheel.
Monday, October 25, 2010
Friday, Nov 5, 2010
Energy Cards test
Show Oaks Test Questions
URL for practice for Oaks test
Car Crash Video
Didn't have time to do the rest
Momentum and Energy with Newton's Cradle
Hewitt Energy video
Show Oaks Test Questions
URL for practice for Oaks test
Car Crash Video
Didn't have time to do the rest
Momentum and Energy with Newton's Cradle
Hewitt Energy video
Wed, Nov 3, 2010
Hand back Cookie Labs
Energy Cards - made it through presentation 1 (source - transducer - dump)
Gave out Quia website, username, password
Check out quizzes and activities
Energy Cards - made it through presentation 1 (source - transducer - dump)
Gave out Quia website, username, password
Check out quizzes and activities
Tuesday, Nov 2, 2010
Gave students time to check Cookie Lab answers with computer
Collected Roller Coaster Labs
Will collect Cookie Labs tomorrow.
Showed video The Way Things Go
Collected Roller Coaster Labs
Will collect Cookie Labs tomorrow.
Showed video The Way Things Go
Monday, Nov 1, 2010
Answered questions on Roller Coaster Lab - due tomorrow
Cookie Lab
Set up computers for students to check results.
Cookie Lab
Set up computers for students to check results.
Friday Oct 29, 2010
Review of KE, GPE, Work, heat
Conservation of Energy
Power
Roller Coaster Lab due Tuesday
Conservation of Energy
Power
Roller Coaster Lab due Tuesday
Thursday, Oct 28, 2010
Go over any questions on end of chapter questions.
Intro to energy
Feynmann Energy - Conservation of Energy
Types of energy
Work
Kinetic Energy - Energy Balls Demo
Gravitational Potential Energy
Hopper Popper Demo
Intro to energy
Feynmann Energy - Conservation of Energy
Types of energy
Work
Kinetic Energy - Energy Balls Demo
Gravitational Potential Energy
Hopper Popper Demo
Wednesday, Oct 27, 2010
Review of entire unit
Slingshot effect
Supernova demo with tennis ball and basketball
Students wrote up end of chapter questions in their journals:
1,2,4,5,6,7,8,9,
11,13,14,15,16,17,19,
20,21,22,24,25,27,28,29,
31,33,37,38
(27 in all). These will be stamped and credit awarded.
Slingshot effect
Supernova demo with tennis ball and basketball
Students wrote up end of chapter questions in their journals:
1,2,4,5,6,7,8,9,
11,13,14,15,16,17,19,
20,21,22,24,25,27,28,29,
31,33,37,38
(27 in all). These will be stamped and credit awarded.
Tues, Oct 26, 2010
Review from yesterday
Impulse, Momentum, Impulse = Change in Momentum
An apple with a weight of 1 N falls 5 m to the ground. With what force did it hit the ground?
Why do you follow through?
Cannon Example - short barrel vs long barrel
Marshmallow demo
Hewitt video on railway cars
Bouncing
Throwing and catching on ice example
Happy/Sad Ball Demo
Hewitt video on bouncing (Pelton water wheel)
Conservation of Momentum
Air track
Draw dashed lines around system
Collisions
Elastic
Inelastic
Newton's cradle
Golf ball and Bowling Ball
Impulse, Momentum, Impulse = Change in Momentum
An apple with a weight of 1 N falls 5 m to the ground. With what force did it hit the ground?
Why do you follow through?
Cannon Example - short barrel vs long barrel
Marshmallow demo
Hewitt video on railway cars
Bouncing
Throwing and catching on ice example
Happy/Sad Ball Demo
Hewitt video on bouncing (Pelton water wheel)
Conservation of Momentum
Air track
Draw dashed lines around system
Collisions
Elastic
Inelastic
Newton's cradle
Golf ball and Bowling Ball
Monday, Oct 25, 2010
Impulse and Momentum introduction
Demos: Egg toss
force plate
Showed part of Hewitt video dealing with boxing
Demos: Egg toss
force plate
Showed part of Hewitt video dealing with boxing
Monday, October 18, 2010
Monday, Oct 18, 2010
Force vs time diagram for stepping on force plate, waiting, jumping up and landing back on force plate, waiting, stepping off.
Does a jar of flies weigh more if the flies are at the bottom than if they are flying around inside? Demo with helicopter and force plate.
Coin in balloon, nut in balloon demos of inertia, friction, force of inside surface on object.
Went over end of chapter questions from Chapters 4,5,6.
Test Tomorrow.
Does a jar of flies weigh more if the flies are at the bottom than if they are flying around inside? Demo with helicopter and force plate.
Coin in balloon, nut in balloon demos of inertia, friction, force of inside surface on object.
Went over end of chapter questions from Chapters 4,5,6.
Test Tomorrow.
Sunday, October 17, 2010
Friday, Oct 15, 2010
Monday is last chance to hand in CD 5-1, CD-6-1
Coffee filter lab - write up in journal
1. Which falls faster, 1 coffee filter or 2 stacked?
2. In the absence of air resistance, which will fall faster, 1 coffee filter or 2 stacked?
3. Sketch and label a free-body diagram for both air resistance and no air resistance.
4. Sketch a graph of speed vs time for a coffee filter dropped through the air.
5. If you drop a single coffee filter from a height of 1 m, how high do you have to drop 2 stacked filters so that they hit at the same time, if dropped at the same time?
6. How many coffee filters do you need to stack so that they fall twice as fast as a single coffee filter?
7. Drop two single filters, one open and one folded. Which falls faster?
Students did lab.
Went over results in class.
Started going over questions from book at end of Chapter 6.
Did elevator examples, and lifting barbell examples using Newton's 2nd and 3rd Laws.
Test on Tuesday.
Coffee filter lab - write up in journal
1. Which falls faster, 1 coffee filter or 2 stacked?
2. In the absence of air resistance, which will fall faster, 1 coffee filter or 2 stacked?
3. Sketch and label a free-body diagram for both air resistance and no air resistance.
4. Sketch a graph of speed vs time for a coffee filter dropped through the air.
5. If you drop a single coffee filter from a height of 1 m, how high do you have to drop 2 stacked filters so that they hit at the same time, if dropped at the same time?
6. How many coffee filters do you need to stack so that they fall twice as fast as a single coffee filter?
7. Drop two single filters, one open and one folded. Which falls faster?
Students did lab.
Went over results in class.
Started going over questions from book at end of Chapter 6.
Did elevator examples, and lifting barbell examples using Newton's 2nd and 3rd Laws.
Test on Tuesday.
Thursday, Oct 14, 2010
Brain stormed physics vocabulary
Asked students to see these vocabulary words in the demos in the video.
Watched video of Physics Extravaganza.
Asked students to see these vocabulary words in the demos in the video.
Watched video of Physics Extravaganza.
Wednesday, Oct 13, 2010
Reviewed Newton's 3rd Law relating it to yesterday's demos
Forces come in "pears"
Showed parts from Independence Day.
Showed that Hollywood does not understand Newton's 3rd Law.
Forces come in "pears"
Showed parts from Independence Day.
Showed that Hollywood does not understand Newton's 3rd Law.
Tuesday, Oct 12, 2010
3rd Law lecture with lots of demos.
Inanimate objects can exert forces.
. Pull back fingers same result as leaning against a wall.
These forces are elastic, the bonds actually stretch.
. Demo with rubber band
. How does floor know how much force to exert to balance weight? Check to see if floor "stretches"
. Demo with laser pointer and mirror showing that wall actually does move when pushed.
Newton's 3rd Law Recipe
. Forces are interactions, they come in pairs
. Demo with finger in water
Newton's 3rd Law: If Object A exerts a force on Object B, then Object B exerts a force on Object A that is equal in magnitude and opposite in direction. There is NO time lag between these forces.
. Demo with force sensors. You can't pull harder on me than I pull on you
. Demo with tug-of-war. The person who wins the tug-of-war is not the person who pulls harder, it is the person who pushes harder against the floor.
. Drop apple, why does apple fall down and Earth not fall up - Newton's 2nd Law
Magic Tube Demo
. Tube pushes up on ball, ball pushes down on tube
Went over how to identify action reaction pairs of forces as opposed to forces that balance through Newton's 1st Law.
Action/Reaction forces will NEVER appear in the same free-body diagram and can NEVER cancel since they don't act on the same object.
Hand out CD 6-1 - due last time on Monday.
Inanimate objects can exert forces.
. Pull back fingers same result as leaning against a wall.
These forces are elastic, the bonds actually stretch.
. Demo with rubber band
. How does floor know how much force to exert to balance weight? Check to see if floor "stretches"
. Demo with laser pointer and mirror showing that wall actually does move when pushed.
Newton's 3rd Law Recipe
. Forces are interactions, they come in pairs
. Demo with finger in water
Newton's 3rd Law: If Object A exerts a force on Object B, then Object B exerts a force on Object A that is equal in magnitude and opposite in direction. There is NO time lag between these forces.
. Demo with force sensors. You can't pull harder on me than I pull on you
. Demo with tug-of-war. The person who wins the tug-of-war is not the person who pulls harder, it is the person who pushes harder against the floor.
. Drop apple, why does apple fall down and Earth not fall up - Newton's 2nd Law
Magic Tube Demo
. Tube pushes up on ball, ball pushes down on tube
Went over how to identify action reaction pairs of forces as opposed to forces that balance through Newton's 1st Law.
Action/Reaction forces will NEVER appear in the same free-body diagram and can NEVER cancel since they don't act on the same object.
Hand out CD 6-1 - due last time on Monday.
Monday, Oct 11, 2010
Hand back Statics Lab and go over any questions.
Finish 2nd Law video - emphasize the effect of air resistance on objects.
Modeled air resistance as knocking aside air molecules. Used hand outside car as example. The air resistance depends on two factors, the speed and the cross-sectional area. Discussed why air resistance goes up as the square of the speed (If you double the speed, you knock aside twice as many air molecules, each hitting twice as hard.)
Parachute example - same cross sectional area.
Through the air, the heavier object falls faster because it takes a greater speed to build up enough air resistance to balance the weight.
Terminal velocity occurs when the object falls fast enough so that the air resistance balances the weight.
Finish 2nd Law video - emphasize the effect of air resistance on objects.
Modeled air resistance as knocking aside air molecules. Used hand outside car as example. The air resistance depends on two factors, the speed and the cross-sectional area. Discussed why air resistance goes up as the square of the speed (If you double the speed, you knock aside twice as many air molecules, each hitting twice as hard.)
Parachute example - same cross sectional area.
Through the air, the heavier object falls faster because it takes a greater speed to build up enough air resistance to balance the weight.
Terminal velocity occurs when the object falls fast enough so that the air resistance balances the weight.
Thursday, Oct 7, 2010
Collect remaining statics labs
Start Newton's 2nd Law video
Explain why objects of different weights fall at the same rate if air resistance can be neglected. Had students explain why and used bowling ball and tennis ball if they said the forces acting on them were the same.
Start Newton's 2nd Law video
Explain why objects of different weights fall at the same rate if air resistance can be neglected. Had students explain why and used bowling ball and tennis ball if they said the forces acting on them were the same.
Wednesday, October 6, 2010
Wednesday, Oct 6, 2010
Collect RA 4.2
Statics Lab done in groups of 3
If students don't finish writeup in class, the write-up is due tomorrow.
Statics Lab done in groups of 3
If students don't finish writeup in class, the write-up is due tomorrow.
Tuesday, Oct 5, 2010
Asked students what they told their parents about the Inertia Mini-Labs.
Went over RA 4.1
Talked about inertia, mass, weight, volume, force
Newton's First Law
Showed how to draw a free-body diagram and how to find net force
Showed "breaking string" tension problem.
Handed out RA 4.2 due tomorrow.
Went over RA 4.1
Talked about inertia, mass, weight, volume, force
Newton's First Law
Showed how to draw a free-body diagram and how to find net force
Showed "breaking string" tension problem.
Handed out RA 4.2 due tomorrow.
Thursday, September 30, 2010
Thursday, Sept 30, 2010
Finished Hewitt video on projectile
Discussions on relativity, expanding universe
"Test" tomorrow.
Magic Tube
Students take home, 5 at a time, to show to parents.
Time to work on Hit-the-Bar calculations
Discussions on relativity, expanding universe
"Test" tomorrow.
Magic Tube
Students take home, 5 at a time, to show to parents.
Time to work on Hit-the-Bar calculations
Wednesday, September 29, 2010
Tuesday, Sept 28, 2010
Computer was available for students to check Rocket 2 Lab results and get graphs.
Lab is due tomorrow (Wednesday)
Stamped and then reviewed homework questions from textbook.
Went over calculations for tomorrow's Hit the Bar Lab.
For homework, suggested students organize notes so they can just plug in their numbers tomorrow.
Lab is due tomorrow (Wednesday)
Stamped and then reviewed homework questions from textbook.
Went over calculations for tomorrow's Hit the Bar Lab.
For homework, suggested students organize notes so they can just plug in their numbers tomorrow.
Monday, Sept 27, 2010
Rocket 2 Lab
It was hot outside and unfortunately, many rockets did not meet expectations.
Rather than have students do all the calculations, I set up an excel program. Students can enter their data and the program will do all the calculations and produce graphs of hang time vs launch angle, range vs launch angle, and height vs angle.
For the write-up: Students will have a cover sheet with
Name:
Partners:
Date of Lab:
Title:
They will then show the three graphs.
On a separate sheet they will have a Conclusions section, labeled Conclusions. In this section they will state 5 major conclusions about the lab from their graphs.
It was hot outside and unfortunately, many rockets did not meet expectations.
Rather than have students do all the calculations, I set up an excel program. Students can enter their data and the program will do all the calculations and produce graphs of hang time vs launch angle, range vs launch angle, and height vs angle.
For the write-up: Students will have a cover sheet with
Name:
Partners:
Date of Lab:
Title:
They will then show the three graphs.
On a separate sheet they will have a Conclusions section, labeled Conclusions. In this section they will state 5 major conclusions about the lab from their graphs.
Friday, Sept 24, 2010
Ball and Track Projectile Motion Competition Lab
Showed students how to do calculations for Rocket Lab 2.
Showed students how to do calculations for Rocket Lab 2.
Thurs, Sept 23, 2010
Watched first part of video on projectile motion.
Went over how to do Ball and Track Projectile Motion Lab.
Went over how to do Ball and Track Projectile Motion Lab.
Tuesday, September 21, 2010
Wednesday, Sept 22, 2010
Finish watching Hewitt video on Linear Motion.
Collect Rocket 1 labs
Rocket quiz
Showed graphs of motion so students would hopefully get a better intuitive feel for the rocket problem
Didn't get to Hewitt video on Linear Motion
Stamped and reviewed homework problems 1-25 Review questions
Students worked at their tables and wrote answers to questions 36-41
Collect Rocket 1 labs
Rocket quiz
Showed graphs of motion so students would hopefully get a better intuitive feel for the rocket problem
Didn't get to Hewitt video on Linear Motion
Stamped and reviewed homework problems 1-25 Review questions
Students worked at their tables and wrote answers to questions 36-41
Tuesday, Sept 21, 2010
Make computer available for checking results from Rocket 1 Lab.
Rocket 1 Lab write-up due tomorrow (Wednesday) - no late work accepted.
Students took out potato guns and measured height and two way time for vertical shots. Compared theoretical heights (from times) with measured heights.
Potato gun competitions
Assigned HW from textbook. Check summary on page 660. Write out answers to Review Questions 1-25.
Quiz tomorrow on Rockets
Rocket 1 Lab write-up due tomorrow (Wednesday) - no late work accepted.
Students took out potato guns and measured height and two way time for vertical shots. Compared theoretical heights (from times) with measured heights.
Potato gun competitions
Assigned HW from textbook. Check summary on page 660. Write out answers to Review Questions 1-25.
Quiz tomorrow on Rockets
Monday, September 20, 2010
Monday, Sept 20, 2010
Went over Sus-It-Out method for linear motion problems.
Showed format for write-up of Rocket 1 lab:
Title, Date, Name, Partners
Data Table
Calculations Section
Do calculations by cap, not by type of calculation
Show calculations for average total time in air
Average time up
Launch speed
Average speed on the way up
Height
Gave students time to work on Rocket 1 labs. Set up program so students could check their calculations.
Showed format for write-up of Rocket 1 lab:
Title, Date, Name, Partners
Data Table
Calculations Section
Do calculations by cap, not by type of calculation
Show calculations for average total time in air
Average time up
Launch speed
Average speed on the way up
Height
Gave students time to work on Rocket 1 labs. Set up program so students could check their calculations.
Wednesday, September 15, 2010
Wed, Sept 15, 2010
Collect RA 2.1
Hand out worksheet on constant speed.
Students did it in class and then I quickly went over it.
Start Hewitt video on Linear Motion
Do Picket Fence Lab and discuss
For homework, RA 2.2
Hand out worksheet on constant speed.
Students did it in class and then I quickly went over it.
Start Hewitt video on Linear Motion
Do Picket Fence Lab and discuss
For homework, RA 2.2
Tuesday, Sept 14, 2010
Students read about chaos and the butterfly effect in their textbooks.
Showed dominoes.
Students did experiment with balls and soap. (Didn't work with water) Showed that, through liquid soap, the heavier objects did indeed fall faster as Aristotle had said.
Handed out RA 2.1 for homework due tomorrow.
Showed dominoes.
Students did experiment with balls and soap. (Didn't work with water) Showed that, through liquid soap, the heavier objects did indeed fall faster as Aristotle had said.
Handed out RA 2.1 for homework due tomorrow.
Monday, September 13, 2010
Monday, Sept 13, 2010
Collect RA 1
Hand back Quiz on class policies
Ask for ideas on how to present magic jar
Ask for plastic squares
If students don't want to hold on to magic jars, I will collect them. If students want to practice and experiment more, they can keep them.
Have students fill out notebook with other demos from Friday:
Soap driven boat
Floating paper clip
Pennies in glass of water
Drops of water on penny
What is meant by surface tension?
Show molecular picture
Two balloon experiment
Spanking baby
Balloon kebabs
Exploding Sausage
Hand back Quiz on class policies
Ask for ideas on how to present magic jar
Ask for plastic squares
If students don't want to hold on to magic jars, I will collect them. If students want to practice and experiment more, they can keep them.
Have students fill out notebook with other demos from Friday:
Soap driven boat
Floating paper clip
Pennies in glass of water
Drops of water on penny
What is meant by surface tension?
Show molecular picture
Two balloon experiment
Spanking baby
Balloon kebabs
Exploding Sausage
Friday, September 10, 2010
Friday, Sep 10, 2010
Collect Parent Notification Forms
Collect Course Expectation Forms
Check Textbooks for Covers
Quiz on Course Expectations
Handed our RA Chapter 1 - due Monday
Handed out flowchart on Surface Tension and discussed several of the demos and experiments
Brain stormed on Inquiry for Magic Jar
Factors that might affect the experiment and how might you eliminate the amount of spill
Size of Mesh
Size of jar and jar opening
Amount of liquid
Type of liquid
What jar is made of
Temperature of water
Material and size of cover
Speed at which you do the experiment
Went over how to set up notebook
Pages 1-6 are Table of Contents in which you put the page number and brief description of the lab/demo/activity
Started on Page 7 with Magic Jar demo
Students made and tested Magic Jars
Demonstrated floating paperclip in water
Demonstrated detergent propelled boat
Demonstrated cracking wrist with plastic cup
Homework: Students are to think of a creative way to demo the Magic Jar
Do RA Ch 1
Collect Course Expectation Forms
Check Textbooks for Covers
Quiz on Course Expectations
Handed our RA Chapter 1 - due Monday
Handed out flowchart on Surface Tension and discussed several of the demos and experiments
Brain stormed on Inquiry for Magic Jar
Factors that might affect the experiment and how might you eliminate the amount of spill
Size of Mesh
Size of jar and jar opening
Amount of liquid
Type of liquid
What jar is made of
Temperature of water
Material and size of cover
Speed at which you do the experiment
Went over how to set up notebook
Pages 1-6 are Table of Contents in which you put the page number and brief description of the lab/demo/activity
Started on Page 7 with Magic Jar demo
Students made and tested Magic Jars
Demonstrated floating paperclip in water
Demonstrated detergent propelled boat
Demonstrated cracking wrist with plastic cup
Homework: Students are to think of a creative way to demo the Magic Jar
Do RA Ch 1
Thursday, September 9, 2010
Thurs Sep 9, 2010
Start of New School Year!!
Students chose seating
Explained BULA greeting
Students filled out seating chart
Student Profile
Got textbooks
Bring covered textbook tomorrow for 10 pts
Students wrote name in books
Didn't go over my background.
Parent Notification - bring one signed form tomorrow for 10 pts
Course Expectations - bring in signed form tomorrow for 5 pts
Went over Course Expectations
Magic Jar demo
Showed Spangler video of Magic Jar demo
Tomorrow:
Check textbooks for covers
Collect Parent Notification Forms
Collect Course Expectation Forms
Quiz on class expectations
Do classroom tour and show emergency meeting place.
Explain how to set up notebook
Students make magic jar
Follow-up experiments on air pressure and surface tension
Hand out RA chapter 1
Homework: Practice demos
RA Chapter 1
Students chose seating
Explained BULA greeting
Students filled out seating chart
Student Profile
Got textbooks
Bring covered textbook tomorrow for 10 pts
Students wrote name in books
Didn't go over my background.
Parent Notification - bring one signed form tomorrow for 10 pts
Course Expectations - bring in signed form tomorrow for 5 pts
Went over Course Expectations
Magic Jar demo
Showed Spangler video of Magic Jar demo
Tomorrow:
Check textbooks for covers
Collect Parent Notification Forms
Collect Course Expectation Forms
Quiz on class expectations
Do classroom tour and show emergency meeting place.
Explain how to set up notebook
Students make magic jar
Follow-up experiments on air pressure and surface tension
Hand out RA chapter 1
Homework: Practice demos
RA Chapter 1
Thursday, September 2, 2010
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