Physics MCQs for Class 9 with Answers
Which quantity is scalar?
Force
Power
Velocity
Torque
When a hammer raised up its energy will be:
Mechanical energy
Gravitational potential energy
Chemical energy
Nuclear energy
kgm2s-2 = _________
Newton
Joule
Watt
Coulomb
Solar energy is a type of.
Renewable
Non-renewable
Natural
None
SI unit of work is:
Joule
Coulomb
Ampere
Kelvin
A body OF mass 10 kg taken to height of 5m:
P.E = 500 J
P.E = 50 J
P.E = 5 J
P.E = 5000 J
The speed of light is equal to:
3 x 105 ms-1
3 x 108ms-1
3 x 109ms-1
3 x 102ms-1
If velocity of a body becomes half that its energy K.E will be decrease to:
Zero
Half
Double
4 Times
if a body of a mass ‘m’ is moving with velocity ‘v’ then its K.E. is given by
K.E. = 1/2 mv
K.E. = 1/2 mv2
K.E. = mv2
K.E. = 1/2 m2v
If mass of body is 10 kg travelling with speed of light, how much energy is generated?
E = 9 × 1017 J
E = 9 × 1015 J
E = 9 × 1018 J
E = 9 × 1016 J
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