Directions: Choose the letter of the best answer. Write your answer on a separate sheet
of paper.
1. Friction is a force that always acts
A. Acts in different motion
C. Opposite to the object's natural motion
B. In the same direction as the object's motion D. Perpendicular to the object's motion
2. Which of the following best describes friction?
A. Friction is never a total advantage C. Botha and b
B. Friction can never be eliminated
D. Friction is a force opposes motion
3. Friction increases with
A. Force
C. Using rough surfaces
B. Weight
D. An increase in surface area
4. All materials below can help reduce friction EXCEPT
A. Ball bearings B. Lubricants C. Sand
D. Wax
5. All materials below can help increase friction EXCEPT
A. Using rubber
C. Using rough surfaces
B. Increasing the weight D Applying wax
6. How can you best reduce friction between the furniture's feet and the floor?
A. By smoothing the floor
) ENG
11:40 AM
01/04/2021 ​