Question

A conservative force is one for which

Select one:

1. the work done is independent of path.

2. the work done is dependent on path.

3. frictional forces are involved.

4. potential energy stored can not be recovered as kinetic energy.

Question 2

Hooke's law relates the distance a spring stretches or compresses to

Select one:

1. the energy stored in the spring.

2. the velocity of the spring.

3. the force exerted on the spring.

4. the work done by the spring.

Question 3

The SI units of work are

Select one:

1. kg m

2. N m

3. N s

4. kg m/s

Question 4

The total energy of the universe is

Select one:

1. decreasing with time

2. increasing with time

3. constant

4. changed by physical processes

Question 5

A dissipative force

Select one:

1. dissipates the total energy of the universe.

2. converts energy from a disorganized form to an organized form.

3. increases the translational energy of a system.

4. converts energy from an organized form to a disorganized form.

Answer 1