Question

Fill in the blanks.

1. Friction opposes the ___ between the surfaces in contact with each other.
2. Friction depends on the ___ of surfaces.
3. Friction produces ___.
4. Sprinkling of powder on the carrom board ___ friction.
5. Sliding friction is ___ than the static friction.

Answer 1

(a) Friction opposes the motion between the surfaces in contact with each other.
(b) Friction depends on the roughness of surfaces.
(c) Friction produces heat.
(d) Sprinkling of powder on the carrom board reduce friction.
(e) Sliding friction islesser than the static friction.