Energy conservation means
A. Generation and destruction of energy
B. Energy could be created
C. Energy could not be created but destroyed
D. Energy can neither be created nor destroyed
Answer: Option D
A. Generation and destruction of energy
B. Energy could be created
C. Energy could not be created but destroyed
D. Energy can neither be created nor destroyed
Answer: Option D
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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