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AP Physics 1

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Unit 5

5.5 Multiple Choice Questions

5 min read•december 20, 2021

AP Physics 1 🎡

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Multiple Choice Practice for Momentum

Welcome to Unit 5 AP Physics 1 Multiple Choice Questions! Grab some paper and a pencil 📄 to record your answers as you go. You can see how you did on the Unit 5 Practice Questions Answers and Review sheet once you're done. Don't worry, we have tons of resources available if you get stumped 😕 on a question. And if solo study is not your thing, join a group in Hours!

Not ready to take a quiz yet? Take a look at the Intro to Unit 5.

Image courtesy of Pixabay

Facts about the test: The AP Physics 1 exam has 50 multiple-choice questions (45 single-select and 5 multiple-select) and you will be given 90 minutes to complete the section. That means it should take you around 15 minutes to complete 8 questions.

The following questions were not written by College Board and, although they cover information outlined in the AP Physics 1 Course and Exam Description, the formatting on the exam may be different.

1. In order to catch a ball, a baseball player naturally moves his or her hand backward in the direction of the ball's motion once the ball contacts the hand. This habit causes the force of impact on the player's hand to be reduced in size principally because ___.

A. the resulting impact velocity is lessened

B. the time of impact is increased

C. the momentum change is decreased

D. the time of impact is decreased

2. Suppose that you're driving down the highway and a grasshopper crashes into the windshield of your car. Which undergoes the greater change is momentum?

A. Grasshopper

B. Car

C. Truck

D. Both the same

3. Suppose that you're driving down the highway and a grasshopper crashes into the windshield of your car. Which undergoes the greater force?

A. Grasshopper

B. Car

C. Truck

D. Both the same

4. Suppose that you're driving down the highway and a grasshopper crashes into the windshield of your car. Which undergoes the greater acceleration?

A. Grasshopper

B. Car

C. Neither

D. Both the same

5. An archer shoots an arrow at a pumpkin on a stand. The arrow embeds itself into the pumpkin and both fly off of the stand at the same velocity. Momentum is conserved. What is the relationship between the initial and final kinetic energy for this collision?

A. Ki > Kf

B. Ki < Kf

C. Ki = Kf

D. Cannot be determined without knowing the speed of the two objects after the collision

6. An archer shoots an arrow at a pumpkin on a stand. The arrow embeds itself into the pumpkin and both fly off of the stand at the same velocity. Momentum is conserved. What type of collision has occurred?

A. Elastic

B. Inelastic

C. Perfectly inelastic

D. Explosion

7. An archer shoots an arrow at a pumpkin on a stand. The arrow bounces off the pumpkin and both fly off of the stand in different directions. Momentum is conserved and Ki = Kf. What type of collision has occurred?

A. Elastic

B. Inelastic

C. Perfectly inelastic

D. Explosion

8. An archer shoots an arrow at a pumpkin on a stand. The arrow bounces off the pumpkin and both fly off of the stand in different directions. Momentum is conserved and Ki > Kf. What type of collision has occurred?

A. Elastic

B. Inelastic

C. Perfectly inelastic

D. Explosion

9. Cars are equipped with padded dashboards. In collisions, the padded dashboards would be safer than non-padded ones because they ____.

A. Inversely decrease the acceleration divided by time

B. Decrease the impact time

C. Decrease the impulse of the passenger

D. Increase the impact time

10. A student conducts an experiment and creates a graph of Force (N) vs. Time (s). How would the student be able to find the impulse of the object from the graph?

A. Find the square root of the y-intercept

B. Find the slope of the best-fit line

C. Find the area of the graph under the curve

D. The impulse cannot be determined from the graph

11. A pitcher throws a baseball to the catcher. The catcher catches the ball and brings it to a stop. Ignoring the flight through the air, the baseball encounters two different impulses - the one imparted to it by the pitcher and the one imparted to it by the catcher. How do these two impulses compare?

A. The impulse provided to the ball by the pitcher is equal to that provided by the catcher.

B. The impulse provided to the ball by the pitcher is less than that provided by the catcher.

C. The impulse provided to the ball by the pitcher is greater than that provided by the catcher.

D. It cannot be determined from the information given.

12. You are sitting at a baseball game when a foul ball comes in your direction. You prepare to catch it bare-handed. To catch it safely, you should _____.

A. move your hands toward the ball during the impact with it

B. move your hands in the same direction as the ball during the impact with it

C. hold your hands as still and steady as possible during the impact with it

D. move out of the way.

13. In a collision, an object experiences an impulse. This impulse causes and is equal to the _____________ of the object.

A. force

B. momentum

C. velocity

D. momentum change

14. The diagram depicts Before and After velocities of an 800-kg car in two different collisions with a wall. In case A, the car rebounds upon collision. In case B, the car hits the wall, crumples up and stops. Assume that the collision time for each collision is equal. In which case does the car experience the greatest momentum change?

A. Case A

B. Case B

C. Both are the same

D. Not enough information is given

15. The diagram depicts Before and After velocities of an 800-kg car in two different collisions with a wall. In case A, the car rebounds upon collision. In case B, the car hits the wall, crumples up and stops. Assume that the collision time for each collision is equal. In which case does the car experience the greatest impulse?