The mass density of an object is defined as its . . . . . . . .
A. Mass per unit length
B. Mass per cubic area
C. Mass per unit volume
D. Mass per unit ampere
Answer: Option C
A. Mass per unit length
B. Mass per cubic area
C. Mass per unit volume
D. Mass per unit ampere
Answer: Option C
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
Join The Discussion