Gravity and Friction Quiz Quiz

10 multiple choice questions

1. How does the force of gravity between two objects change as the distance between them increases?

A) Increases with distance B) Decreases with distance C) Is constant D) Only acts on Earth

2. What is the approximate acceleration due to gravity on Earth's surface?

A) 1 m/s^2 B) 9.8 m/s^2 C) 100 m/s^2 D) 0 m/s^2

3. What would your weight be on the Moon compared to your weight on Earth?

A) Same as on Earth B) About 1/6 of your weight on Earth C) About 6 times your weight on Earth D) Zero

4. What type of friction prevents an object from moving in the first place?

A) Moving B) Stationary (not yet moving) C) Floating D) Falling

5. Rolling friction occurs when what type of motion is happening?

A) Stationary B) Not moving C) Sliding or rolling D) Spinning

6. How does static friction compare to sliding friction for the same object?

A) Greater than sliding friction B) Less than sliding friction C) Equal to sliding friction D) Not related to sliding friction

7. What is the coefficient of friction in physics?

A) A force B) A dimensionless ratio (no units) C) Measured in Newtons D) Always greater than 1

8. What factors affect the amount of air resistance on a moving object?

A) Lower speed B) Higher speed and larger surface area C) Lower surface area D) Mass only

9. A skydiver reaches terminal velocity when which force equals the skydiver's weight?

A) Air resistance equals weight B) Air resistance exceeds weight C) There is no air resistance D) Gravity stops acting

10. The support force exerted by a surface on an object resting on it is called what?

A) Net force B) Normal force C) Weight only D) Applied force only

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