1. A ball rolled after being kicked and slowed down until it stopped. Which of the following forces caused the ball to slow down?
*1 punto

A. electrical

B. friction

C. gravity

D. magnetic

2. Is friction between the floor and a cabinet present when a person pushes the cabinet?*

1 punto

A. Yes, because the bottom surface of the cabinet is in contact with the floor.

B. Yes, because the bottom surface of the cabinet does not rub against the floor.

C. No, because the bottom surface of the cabinet has nothing to do with the floor.

D. No, because the bottom surface of the cabinet is only rubbing against the

3. Which of the following is NOT TRUE about friction?*

1 punto

A. Friction opposes motion of objects.

B. Friction occurs between non-rubbing surfaces.

C. Friction causes moving objects to slow down and stop.

D. Friction acts in a direction opposite to the direction of an object’s motion.

4. Which of the following can friction do to a glass of water on a table?*

1 punto

A. It moves the glass.

B. It allows the glass to slide.

C. It does not affect the glass.

D. It prevents the glass from sliding.

5. Which of the following actions is difficult to do with friction?*

1 punto

A. writing on a paper

B. holding a banana

C. playing basketball

D. pushing a heavy cabinet

6. Which of the following statements is TRUE?*

1 punto

A. Friction makes objects move.

B. Friction stops moving objects.

C. Friction has no effect on moving objects.

D. Friction allows moving object to continue moving.

7. Which of the following statements describe friction?*

1 punto

A. It slows down motion.

B. It pulls objects downward.

C. It does not oppose motion.

D. It moves along with the object.

8. Which force is present when two objects rub against each other?*

1 punto

A. friction

B. gravity

C. magnetic

D. motion

9. Why do drivers drive their car slowly during rainy days?*

1 punto

A. Drivers drive slowly because the windshield is blurred.

B. Drivers drive slowly because they are afraid of the rain.

C. Drivers drive slowly because the road is wet so there is less friction.

D. Drivers drive slowly because the road is wet so there is more friction.

10. Which is NOT a way of reducing friction?*

1 punto

A. applying lubricant

B. putting spikes on tires

C. making the floor smooth

D. putting grease on bicycle gears

11. Why do you need to put rollers under the cabinets when you want to move them?*

1 punto

A. to apply more force

B. to stop the movement of the cabinet

C. to slow down the movement of the cabinet

D. to minimize friction through the small surface of contact of the rollers.

12. Why do badminton players use rubber shoes while playing?*

1 punto

A. to slide since the badminton court is slippery

B. to glide faster since the badminton court is slippery

C. to have lesser friction between their shoes and the floor.

D. to have greater friction between their shoes and the floor.

13. Which of the following shows that friction could be harmful?*

1 punto

A. writing on the board

B. holding a piece of paper

C. tearing out of bicycle gears

D. using breaks when stopping

14. Which of the following situations shows that friction is increased?*

1 punto

A. Ana uses rubber shoes while jogging.

B. Ruben puts rollers on heavy cabinets.

C. Naldo puts grease on his bicycle gears.

D. Belle puts floor wax to make the floor smooth.

15. A boy is playing with a toy car. In which surface will it travel faster?*

1 punto

A. cemented floor

B. carpeted floor

C. grassy surface

D. polished floor

Read the following items carefully and tell whether the statements are True or False.

Option 1

16. Friction opposes motion of objects.*

1 punto

True

False

17. Friction acts in a direction the same as the direction of the object’s motion.*

1 punto

True

False

18. Friction occurs when the surfaces of the two objects rub against each other*

1 punto

True

False

19. Friction causes moving objects to stop.*

1 punto

True

False

20. Friction is produced by a single object.*

1 punto

True

False​