Quiz in Friction

1. Identification

2. 1.It is a force that
opposes or slows down
motion when two
surfaces rub against each
other.

3. 2.This type of friction
occurs between
objects that are not
moving.

4. 3. Friction that acts
when objects are
already sliding or
moving.

5. 4. The friction
between air and a
moving object such as
a car or airplane.

6. 5. The friction that
occurs between a
liquid and a moving
object.

7. 6. It is the force that
pulls objects toward
the center of the
Earth.

8. 7. Without this force,
objects would float
away into space.

9. TRUE OR FALSE

10. 8. Friction is a force
that slows down or
stops the movement of
objects.

11. 9. The rougher the
surface, the stronger
the friction becomes.

12. 10. Friction makes it
harder for objects to
stop moving.

13. 11. Friction helps us
walk without
slipping.

14. 12. Gravity gives
weight to objects.

15. 13. Objects will
keep moving
forever even with
friction.

16. 14. Car brakes use
friction to help
vehicles slow down
or stop.

17. 15. Sliding friction
happens when two
surfaces move
against each other.