Work in Physics Quiz Questions and Answers PDF Download - 53

When the force is applied to the object but the object does not move, it means that

1. no work is done
2. work is done
3. there is some friction
4. none of the above

Length, mass, electric current, time, intensity of light and the amount of substance are the examples of

1. base quantities
2. derived quantities
3. prefixes
4. quartile quantities

It implies that the object could be stationary or moving with constant velocity

1. decreasing acceleration
2. zero acceleration
3. increasing acceleration
4. constant deceleration

As the pendulum swings, some of its total energy is converted to thermal energy due to

1. weight
2. mass
3. potential forces
4. frictional forces

The point at which all rays parallel to the principal axis converge to after refraction by the lens is called

1. focal length
2. optical center
3. focal plane
4. focal point