1. If the man was not able to push the box at his first try, what kind of friction is shown? *
1 point
A. static friction
B. kinetic friction
C. gliding friction
D. rolling friction
2. What force is present between the floor and the box? *
1 point
A. friction
B. force
C. push
D. pull
3. As the man exerts force, he was able to push the box to where it should be, what kind of friction is it? *
1 point
A. static friction
B. kinetic friction
C. gliding friction
D. rolling friction
4. What kind of kinetic friction is shown in this picture? *
1 point
A. sliding friction
B. rolling friction
C. air friction
D. fluid friction
5. Based on the picture, what kind of force is applied for the box and the box to have friction? *
1 point
A. push
B. pull
C. glide
D. roll
6. A force that opposes the movement of an object is called ______. *
1 point
A. friction
B. gravity
C. inertia
D. accelaration
7. What do bumps and hollows do to the surface of an object? *
1 point
A. They smoothens it.
B. They make it rough.
C. They make it shiny.
D. They make it wet.
8. Why does a cart move faster on a cemented road than on a bumpy road? *
1 point
A. Friction is greater on a cemented road.
B. Friction is lesser on a cemented road.
C. There is no friction on a cemented road.
D. The cart can roll only on a cemented road.
9. Which concept explains why you don’t easily feel tired when you go down the stairs? *
1 point
A. friction
B. motion
C. energy at rest
D. gravity
10. Why will your shoes wear out easily on a rough road than on a smooth road? *
1 point
A. There is greater friction on a rough road.
B. It is difficult to walk on a rough road.
C. You walk slowly on a shiny floor.
D. You need longer time to walk on a rough road.


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