# 11th Class Physics MCQS Chapter 3

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The time rate of change of momentum equals
Weight
Impulse
Mass
Applied force

Newton’s laws of motion were published in
1687
1587
1787
1887

When the car moves with an increasing acceleration then its velocity time graph is always
Variable
A curve
A straight line
Constant

Rate of change of displacement is called
Speed
None of these
Kinetic energy
Velocity

Rate of change of velocity is called
Torque
Speed
Displacement
Acceleration

A collision in which K.E. of the system is not conserved is
Inelastic collision
3rd low of motion
None of these
Elastic collision

Total change in momentum of an isolated system is
Always (+) ve
Always (-) ve
Zero
Has maximum value

The equations of motion hold good for
Variable acceleration
Centripetal acceleration
Uniform acceleration
All of these

In matter, the Atoms are in a state of never ending
Motion
Change
Rest
State of decline

In the absence of air resistance the acceleration of a body will be
None of these
Instantaneous
Uniform
Variable

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