Physics Review Game:Chapter 4

Mr. Vannucci’s Class

1. Which of the following are not an acceleration (there may be more than one

answer)?a. A ball on a string spinning around

b. A car speeding up from a lightc. You sitting

d. A car slowing down to a stop light

2. A spring has a potential energy of 24 J and a spring constant of 1200 N/m. How much is

it stretched by?a. I don’t know

b. 0.04 mc. 0.2 md. 0.1 m

3. In the Hooke’s Law lab, you made a graph of Force of the spring (y-axis) in terms of the

stretch (x-axis). What did the slope of this graph represent?

a. Spring Constantb. Spring Potential Energyc. Spring Restoring Force

d. Not enough information

4.

5. You have a spring-loaded toy with a spring constant k = 120 N/m. How much must you

compress the spring by in order for the toy to reach a maximum height of 0.85 m? (mass =

0.02 kg)

6. The gravitational attraction between two objects is 500 N. How will this force change if

the distance between them is tripled?

7. For which ramp will the cart have the greatest velocity at the bottom? Assume zero

friction

a. Ramp Bb. Ramp A

c. Samed. Not enough information

8. In the early-morning a roller coaster has only 6 passengers on board.

In the afternoon, it has 26 passengers on

board.

Will the speed of the rollercoaster change with more passengers on board? Justify your

answer.

9. The gravitational force between two objects is 10 N. What would the force be if

both masses were doubled?a. 10 Nb. 20 Nc. 40 Nd. 80 N

10. A 50 kg student is on a scale in an elevator. What will the scale read if the

elevator accelerates upwards at 1.5 m/s/s?a. 425 Nb. 500 Nc. 575 Nd. 625 N

11. If the kinetic energy of an object is 32 J when the object is at a height of 1 m and has a velocity of 4 m/s, what is the object’s mass?

12. A cart has a length of 4.5 cm. When speeding through a timing circuit, the timer reports that the car takes 0.033 seconds to pass through. What is the cart’s velocity?

13. A roller coaster starts at point A. The designers wanted the ride to end at point H

with no extra assistance. Is this possible? Explain (in writing) why or why not.

14. Your spring scale has a k = 10 N/cm. You hang an apple from the scale and it stretches

0.05 cm. What is the mass of the apple (in kg)? (No, do not convert the cm to m).

15. Using the “virtual skate park” simulator linked in today’s wiki entry, design a roller coaster with one successful loop for the

skater.

NOTE: A successful loop means the skater completes the loop without falling off the

track.

10. a. b. c. d.