EASY
8th CBSE
IMPORTANT
Earn 100

Match items in Column A with those in Column B.

Column A Column B
(i) Friction Produces (a) Ceiling Fan
(ii) Lubricants (b) Heat
(iii) Soapy floor (c) Oil and grease 
(iv) Ball bearing (d) Rolling friction
(v) Wheels (e) Less the friction

 

Important Questions on Friction

EASY
8th CBSE
IMPORTANT

Name the force which always opposes motion.

EASY
8th CBSE
IMPORTANT

Out of static friction, sliding friction and rolling friction:

Which one is the largest?

EASY
8th CBSE
IMPORTANT

Out of static friction, sliding friction and rolling friction:

Which one is the smallest?

EASY
8th CBSE
IMPORTANT

The surface of matchbox should be rough. Explain why.

EASY
8th CBSE
IMPORTANT

Oiling of the axles of a bicycle make the bicycle moving easily. Comment along with the reason.

EASY
8th CBSE
IMPORTANT

Write the use of friction.

EASY
8th CBSE
IMPORTANT

Write the condition under which the rolling friction increases.

EASY
8th CBSE
IMPORTANT

Give the name of material which reduces the force of friction.