Which one among the following happens when a swing rises to a certain height from its rest positions?
A. Its potential energy decreases while kinetic energy increases
B. Its kinetic energy decreases while potential energy increase
C. Both potential and kinetic energy decreases
D. Both potential and kinetic energy increases
Answer: Option B
Related Questions on Work, Energy and Power
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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