1. What force opposes the movement of an object?



A. Acceleration

B. Friction

C. Gravity D. Sliding force

2. Friction is important because it _______.

A. pulls us closer to Earth.

B. keeps heavenly bodies in orbit.

C. makes the engine parts wear away.

D. aids us in walking, running, jumping and jogging.

3.Why does a car moving on a smooth highway progress faster than a car moving on a rough

road?

A. The rougher the surface in contact, the greater the friction.

B. The rougher the surface in contact, the lesser the friction.

C. The smoother the surface in contact, the greater the friction.

D. The smoother the surface in contact, the lesser the friction.

4. Which of the the following statements best describes friction?

A. It is a force that occurs between solids.

B. It is a force occurs only on rough surfaces.

C.It is a force that occurs between solids and liquids.

D. It is a force that occurs when surfaces touch each other.

5. If you pour oil onto a wooden surface, what will happen to the friction?

A. Be zero

B. Be reduced

C. Be increased

D. Remains the same

6. Friction that occurs when an object is at rest is known as______________.

A. static friction

B. kinetic friction

C. rolling friction

D. sliding friction

7. Which of the following has the greatest friction?

A. polished floor

B. Sandy floor

C. Wet floor

D. Tiled floor

8. The kind of force that acts between moving surfaces is called ________.

A. kinetic friction

B. static friction

C. rolling friction

D. sliding friction
9. It is responsible for the wear and tear of machine parts.

A. Kinetic friction

B. Static friction

C. Rolling friction

D. Sliding friction

10. Which is the reason why an object in motion eventually slows down and stop?

A. The friction between objects causes the object to slow down and eventually stop.

B. The friction attached to the object in motion has no effect to its movement

C. The absence of friction makes the moving object to slow down and stop

D. The friction can’t stop or slow down the moving object

help po please​