Which of the following is not a characteristic of work?
A. Work has a direction
B. For doing work it is necessary to apply a force on an object
C. Work has only magnitude
D. For work done their should be a displacement of an object
Answer: Option A
A. Work has a direction
B. For doing work it is necessary to apply a force on an object
C. Work has only magnitude
D. For work done their should be a displacement of an object
Answer: Option A
Which of the following can do more work?
A. A raised hammer
B. A bullet fired by the gun
C. A moving stone
D. A rotating wheel
A. Energy released by a moving object
B. Energy emitted during mechanical work
C. The sum of the kinetic energy and potential energy of an object
D. Equal to the rate of work done
A. Chemical energy
B. Potential energy
C. Kinetic energy
D. Heat energy
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