1. MULTIPLE CHOICE: Read each item carefully then circle the letter of the correct answer.
1. Which of the following statements bost describes friction?
Afisoforce that occurs between solids.
Bitka force that occurs only on rough surfaces
C. M is a force that occurs between solids and liquids.
D. It is a force that occurs when surfaces touch each other.
2. Why can't a boll roll continuously on a rough surface?
A The rough surface is not made for balls to roll.
B. The force which enables the bali to move is released.
The rough texture of the surface blocks the movement of the ball.
D. The rough texture of the surface permits the movement of the ball.
3. What eventually happens to a moving object when it moves along a surface?
A. # will continuously move.
8. I will stop immediately.
C. #will eventually slow down and stop.
D. It will move either to the night or left side and stop.
Which moves fostest on a liat surtocer
A Ball
C. Block of wood
8. Wooden box
D. Sheet of paper
5. A bicycle moves foster on a cemented road than on a bumpy road. Why?
A. Friction is greater on a cemented road.
B. Frichon is lesser on a cemented road.
C. There is no biction on a cemented road.
D. The bicycle con roll only on a cemented road.
6. Which shows that friction is undesirable
A. Pushing furniture. C. Walking on wet floors.
B. Lighting a matchstick D. Approaching a stoplight.
7. Why does a car travel faster in going down than in going up
A. It is moving against gravity.
B. It is being pushed by the wind.
C# is moving toward gravity.
D. It is being pulled by the weight of the car.​