Physics MCQs for Class 9 with Answers
If f = 40 N is applied and bus is move 1m than work is :
40 J
60 J
80 J
No work
In a dam the water energy is called:
Heat energy
Electrical energy
G.P.E
Mechanical enrgy
Einstein’s mass-energy equation is
E = mc
E = mc2
E = 2mc
E = m2c
Ability of body to do work due to its height is called.
potential energy
kinetic energy
gravitational potential energy
elastic potential energy
If the velocity of a body becomes double, then its kinetic energy will:
Remain the same
Become double
Become four time
Become half
The tendency of doing work is called :
Time
Energy
Force
Area
The unit of work is :
J
N
Ns
m
In which of the following state molecules don not leave their position?
Solid
Liquid
Gas
Plasma
A solar cell is also called:
Photo cell
Generator
Battery
None
Mass-Energy equation was given by:
Newton
Einstein
Joule
Pascal
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