EASY
9th CBSE
IMPORTANT
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A car is accelerated on a levelled road and acquires a velocity times of its initial velocity. During this process, the potential energy of the car:
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Important Questions on Work and Energy
EASY
9th CBSE
IMPORTANT
A car is accelerated on a levelled road and acquires a velocity times of its initial velocity. During this process, the kinetic energy of the car:
MEDIUM
9th CBSE
IMPORTANT
In case of negative work, the angle between the force and displacement is:
EASY
9th CBSE
IMPORTANT
An iron sphere of mass has the same diameter as an aluminium sphere of mass . Both the spheres are dropped simultaneously from a tower. When they are above the ground, they have the same:
EASY
9th CBSE
IMPORTANT
A girl is carrying a school bag of mass on her back and moves on a levelled road. If the value of be , the work done by the girl against the gravitational force will be:
EASY
9th CBSE
IMPORTANT
The work done on an object does not depend on the:
EASY
9th CBSE
IMPORTANT
Water stored in a dam possesses:
EASY
9th CBSE
IMPORTANT
The momentum of a bullet of mass fired from a gun is . The kinetic energy of this bullet in will be:
MEDIUM
9th CBSE
IMPORTANT
Each of the following statement describes a force acting. Which force is causing work to be done?
