Physics: Lab - Collisions I
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Transcript of Physics: Lab - Collisions I
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Name: PhysicsDate: Unit 5 Week 3
Lab: Collisions IElastic Collisions
Introduction:
In this lab, you and your partner will visualize an elastic collision between two different objects.During the lab, you are expected to predict the outcome of the collision and calculate the
velocities of the objects after a collision.
Directions:1. Checkthe box Show Values
2. Clickthe button More Data.
3. Verifyyour screen looks like this.
Experiment One:Bump and RollSetup: Mass Velocity
Ball 1 1 kg 1.0 m/s
Ball 2 2 kg 0.0 m/s
1. Predict the outcome of the collision: (Circle your prediction!)
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
2. Press Play, Record the results.
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
3. Provethe final velocities in the simulation by using the Law of Conservation ofMomentum.
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Experiment Two:Bump and Roll, AgainSetup: Mass Velocity
Ball 1 2 kg 1.0 m/sBall 2 1 kg 0.0 m/s
4. Predict the outcome of the collision: (Circle your prediction!)
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
5. Press Reset, Press Play and Record the results.
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
6. Provethe final velocities in the simulation by using the Law of Conservation of
Momentum.
7. Compare/Contrastthe results of Experiment One and Experiment TwoBe sure to discuss the difference in mass.
Experiment Three:Bump and Roll, Last TimeSetup: Mass Velocity
Ball 1 ? kg 1.0 m/sBall 2 1 kg 0.0 m/s
8. Predict what the starting mass of Ball 1 needs to be to get it to completely stop when ithits Ball 2.
9. Calculatethe necessary starting mass using the Law of Conservation of Momentum.
10. Verifyyour calculation by running the simulation with your calculated value.
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Experiment Four:Rear End CollisionSetup: Mass Velocity
Ball 1 2 kg 2.0 m/sBall 2 1 kg 1.0 m/s
11. Predict the outcome of the collision: (Circle your prediction!)
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
12. Press Reset, Press Play and Record the results.
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
13. Provethe final velocities in the simulation by using the Law of Conservation of
Momentum.
Experiment Five:Rear End Collision, AgainSetup: Mass Velocity
Ball 1 1 kg 2.0 m/sBall 2 2 kg 1.0 m/s
14. Predict the outcome of the collision: (Circle your prediction!)
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
15. Press Reset, Press Play and Record the results.
a) Ball A will be: moving faster moving slower stopped
b) Ball B will be: moving faster moving slower stopped
16. Provethe final velocities in the simulation by using the Law of Conservation ofMomentum.
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17. Compare/Contrastthe results of Experiment Four and Experiment FiveBe sure to discuss the difference in mass.
Experiment Six:Bump and Roll, Last TimeSetup: Mass Velocity
Ball 1 ? kg 1.0 m/sBall 2 1 kg 0.0 m/s
18. Predict what the starting mass of Ball 1 needs to be to get it to completely stop when ithits Ball 2.
19. Calculatethe necessary starting mass using the Law of Conservation of Momentum.
20. Verifyyour calculation by running the simulation with your calculated value.
