ASSESSMENT :
Multiple Choice: Read each item carefully.
Select the letter of the best answer.
1. Which shows that friction is
undesirable?
a. Pushing furniture
b. Lighting a matchstick
c. Walking on a wet floors
d. Using the brakes when
approaching a stop light
2. How can you best reduce friction
between the bottom of the feet of
furniture and the floor?
a. By smoothing the flor
b. By the furniture in their place
c. By applying lubricants like wax
on the floor
d. By putting wheels or rollers on
the bottom or feet of the
furniture.
3. 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. It is moving towards gravity
d. It is being pulled by the weight of
the car
4. What force does the brakes of the
bicycle produce to stop the bike?
a. Pitch
b. Gravity
c. Friction
d. Magnetism
5. A boy is playing with a toy sledge. In
which surface will it travel fastest?
a. The carpet
b. The rough floor
c. The wet floor
d. The polished floor​