When a body falls freely towards the earth, then its total energy
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
In case of negative work, the angle between the force and displacement is
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be (g =10 m s⁻²)
Which one of the following is not the unit of energy?
The work done on an object does not depend upon the
Additional Information about Quiz on Chapter – Work and Energy | CBSE Class 9 Physics:
This quiz is based on Exemplar Problems and other questions from the "Work and Energy" chapter of the Physics section in the Science subject for CBSE NCERT Class 9 (IX). These questions focus on concepts like work, energy, power, and their interrelation, helping students build a solid foundation for exams. For more such resources, visit the official NCERT website.
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