Question 4781:

A swinging pendulum between the rest position and its maximum displacement possesses

A. Kinetic energy only
B. Potential energy only
C. Gravitational energy only
D. Both kinetic and potential energy

Question 4782:

An eternal force of magnitude 100 acts as a particle of mass 0.15kg for 0.03s cat.
The change in the speed of the particle

A. 50ms^-1
B. 25ms^-1
C. 20ms^-1
D. 5ms^-1

Question 4783:

Mechanical energy can be either ____________

A. Kinetic or electric
B. Electrical or potential
C. Potential or kinetic
D. Electric or heat

Question 4784:

Which of the following surfaces will radiate heat energy best

A. Red surface
B. White surface
C. Black surface
D. Yellow surface

Question 4785:

The resistance of a wire depends on ____________

A. The length of the wire
B. The diameter of the wire
C. The temperature of the wire
D. The resistively of the wire
E. All of the above