1. Fluids are:
a) Gases
b) liquids
c) gases and liquids both
d) none of these
2.Force of friction depends on:
a) Smoothness of surface
b) roughness of surface
c) inclination of surface
d) all the above.
3. Friction always:
a) Helps the motion
b) opposes the motion
c) both of these
d) none of
these.
4. Birds and fishes have ________ shaped body
5. Smooth surfaces produce _______ friction than rough surfaces.
Answers
Answered by
1
Answer:
1: C
2: D
3: B
5: less
hope i am not wrong
Answered by
16
Answer:
Solution :-
❶ Fluids are :-
a) Gases
b) Liquids
c) Gases and liquids both
d) None of these
➲ Fluids are c) Gases and liquids both.
❷ Force of friction depends on :
a) Smoothness of surface
b) Roughness of surface
c) Inclination of surface
d) All the above
➲ Force of friction depends on b) Roughness of surface.
❸ Friction always :
a) Helps the motion
b) Opposes the motion
c) Both of these
d) None of these
➲ Friction always b) Opposes the motion.
❹ Birds and fishes have streamlined shaped body.
❺ Smooth surface produce less friction than rough surfaces
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