1. A group of students is using the standard vehicle with the falling-weight system.If they increase the mass of the vehicle, but keep the force the same, what will happen? The vehicle will move

a. faster and fartherb. slower and not as farc. the same speed and distanced. slower and farther

2. A group of students is using the standard vehicle with the falling-weight system.Which type of force is providing the energy in this system?

a. frictionb. dragc. gravityd. weight

3. Which of the following describes periodic motion?

a. equal distances traveled in equal timesb. different distances traveled in equal timesc. motion with no patternd. motion that repeats itself

4. Which is an example of periodic motion?

a. bouncing ballb. escalatorc. falling objectd. accelerating car

5. Which of the following describes uniform motion?

a. motion with no patternb. motion that repeats itselfc. equal distances traveled in equal timesd. different distances traveled in equal times

6. Which is an example of uniform motion?

a. bouncing ballb. accelerating carc. conveyor beltd. pogo stick

7. Variable motion is traveling different distances in equal times.Which is an example of variable motion?

a. a pogo stickb. an accelerating carc. an escalatord. a bouncing ball

8. Which of the following measurements can be used to describe a change in position?

a. 2 metersb. 2 gramsc. 2º Celsiusd. 2 milliliters

9. On the standard vehicle, what design feature increases the friction between the vehicle and the work surface?

a. tiresb. tan hub connectorsc. crossbarsd. frame

10. You are moving a propeller-driven vehicle on a tile surface. You move your vehicle to a carpeted surface and your vehicle slows down.What caused the change in the speed of your vehicle?

a. propellerb. frictionc. rubberbandd. gravity

11. Many vehicles are designed to decrease air resistance.Air resistance is what type of force?a. tensionb. kineticc. frictiond. gravity

Vehicle A has no blocksVehicle B has 1 blockVehicle C has 2 blocksVehicle D has 3 blocks

12. Which vehicle would require the most force in order to move?

a. Vehicle Ab. Vehicle Bc. Vehicle Cd. Vehicle D

13. Given the same force, which vehicle would move the greatest distance in 5 seconds.

a. Vehicle Ab. Vehicle Bc. Vehicle Cd. Vehicle D

Vehicle A has no blocksVehicle B has 1 blockVehicle C has 2 blocksVehicle D has 3 blocks

A

B

C

D

14. Which type of motion is a roller coaster?a. uniformb. variablec. periodicd. perpetual

15. What is the force that is acting most upon these falling objects?a. frictionb. gravityc. tensiond. potential

In this investigation, a student is releasing a marble at the top of a ramp and observing it rolling down the ramp.

16. Which best explains the reason the marble stops rolling?

a. frictionb. gravityc. tensiond. drag

Image copied from National Geographic’s Using Force and Motion, p. 29.

A car and a truck move on a road in the same direction at the samespeed. Both vehicles slow down with the same stopping force.17. Which statement best explains why the truck needs more distance to stop?

a. The truck is longer.b. The truck has more mass.c. The truck has larger wheels.d. The truck has a larger engine.

18. A horse is in motion. Which of these statements about the horse must be true?

a. It must be slowing down.

b. It must be running quickly.

c. It must be changing position.

d. It must be changing direction.

19. Which of these is an example of uniform motion?

a. A car makes a turn.

b. A dog speeds up to catch a ball.

c. A plane moves faster in the process of taking off.

d. A ski lift carries passengers steadily up a mountain.

20. Ken rolled a ball along the floor. After a while, the ball slowed down and stopped. Which of these best explains why the ball did not keep rolling?

a. All the forces on the ball were equal.

b. The force of friction acts against the ball’s motion.

c. There were no forces acting on the ball as it rolled.

d. The force of gravity pushes the ball away from the floor.

1. B

2. C

3. D

4. A

5. C

6. C

7. B

8. A

9. A

10.B

10. B

11. C

12. D

13. A

14. B

15. B

16. A

17. B

18. C

19. D

20. B