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Question-1
An electrical heater converts
(A)
heat energy to electrical energy
(B)
electrical energy to heat energy
(C)
light energy to electrical energy
(D)
electrical energy to muscular energy
Question-2
Which energy conversion takes place during photosynthesis?
(A)
Heat energy to Light energy
(B)
Light energy to Heat energy
(C)
Light energy to Chemical energy
(D)
Heat energy to Chemical energy
Question-3
When we throw a ball into the air, it falls back. The force responsible for this is
(A)
muscular force
(B)
gravitational force
(C)
mechanical force
(D)
None of these
Question-4
Which one of the following statements is NOT true?
(A)
Friction makes a moving object slow down and stop
(B)
Friction between two surfaces will make them hot
(C)
Friction also enables an object to stay in a stationary position
(D)
Friction decreases if roughness of an object increases
Question-5
In which one of the following activities is force used for pulling?
(A)
Blowing air into a balloon
(B)
Cycling
(C)
Stretching a rubber band
(D)
None of these
Question-6
Which one of the following cannot be done by using muscular force?
(A)
Changing the direction of a moving body
(B)
Stopping a moving body
(C)
Changing or decreasing the speed of a body
(D)
Increasing or decreasing the speed of a body
Question-7
While playing football, the ball is passed from player to player at different speeds. It is possible because of
(A)
players expertise
(B)
the ground
(C)
gravitational pull
(D)
force
Question-8
The force which pulls a body towards the earth is called
(A)
friction
(B)
gravity
(C)
tension
(D)
collision
Question-9
A football kicked by a boy rolls on the ground to some distance and stops. The force which stops the ball is
(A)
muscular force
(B)
gravitational force
(C)
mechanical force
(D)
frictional force
Question-10
Electrical energy can be produced by
(A)
coal
(B)
water
(C)
uranium
(D)
all the above
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Std 5
ICSE/ISC
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