3. Fill in the blanks :
(a) Force of friction opposes the......motion between the surfaces in contact.
(b) Friction is caused by the.....
on the two surfaces in contact.
(c) Heat generated due to friction when a machine is operated causes much
.... ofenergy
(d) ...... , a form of carbon is used as a lubricant where oil can not be used.
(e) Ball bearings convert sliding friction into.... friction .
(f) ......shapes of vehicles help in minimizing friction.
Answers
Answered by
3
Answer:
answer of A is relative
B is irregularity of the surface
C is lot of energy
D is graphite
E is rolling
F is streamlined shape
Similar questions