Physics MCQS

1011. In a gravitational field, if the displacement is in the direction of gravitational force, the work done will be?
A. Zero
B. Positive
C. Negative
D. None of the above

1012. When two protons are brought together?
A. Potential energy decreases
B. Potential energy increases
C. Kinetic energy increases
D. Potential energy remains the same

1013. Energy stored in a dam is?
A. Kinetic energy
B. Elastic potential energy
C. Gravitational potential energy
D. Nuclear energy

1014. Energy stored in the spring is called?
A. Electric energy
B. Kinetic energy
C. Elastic potential energy
D. Gravitational potential energy

1015. The original source of tidal energy is?
A. Moon
B. Sun
C. Earth
D. None of the above

1016. The typical source of wave energy is?
A. Sun
B. Moon
C. Earth
D. None of the above

1017. The unit of the energy is the same as that of?
A. Velocity
B. Work
C. Power
D. Force

1018. Density of a solid is a?
A. Vector quantity
B. Scalar quantity
C. Fixed quantity
D. None of the above

1019. Which one is the biggest unit of energy?
A. erg
B. Joule
C. Watt-hour
D. Kilo-watt-hour