17 A ball is rolling on the ground towards the south. What will be the direction of the
frictional force acting on it?
a)East
b)North
c)West
d)East-West
18. Identify the solution that does not conduct electricity.
a)Lemon juice
b)Dilute hydrochloric acid
c)Sodium hydroxide solution
d)Distilled water
19. Which one of these protects us from electric shocks?
a)Earthing
b)Lightning
c)Charging
d)All of these
20. Which one of the following constellations is also called "The Hunter"?
a)Orion
b)Cassiopeia
c)Ursa Major
d)Leo Major
Answers
Answered by
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17. B
18. D
19. A
20. A
Hope it helps.
18. D
19. A
20. A
Hope it helps.
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