DC -- Conservative forces and Potential Energy

What musical instrument is shown in a picture in the reading?

• flute

• tuba

• guitar

• violin

A conservative force is like which other type of force?

• gravitational

• friction

• tension

• applied

Which statement best defines conservative forces?

• The net forces depend on the path taken when friction works as an opposing force.

• The path taken by the force depends on the direction of the net forces.

• The work done depends only on the starting and ending points of a motion and not on the path taken.

Stored energy in a spring is recoverable as ___.

• power

• work

• friction

• action-reaction

Energy in a system has due to position, shape, or configuration.

• potential energy

• kinetic energy

• magnetic energy

• action-reaction energy

Which law relates to the energy of a spring?

• Law of Molecular Energy

• Law of Universal Gravitation

• Newton's law

• Hooke's law

Which letter represents the force constant of a spring?

• g

• s

• k

• N

Which phrase appears often in this reading assignment?

• potential-energy theorem

• work-energy theorem

• spring-release theorem

• gravitational-release theorem

The total kinetic plus potential energy of a system is defined to be ___.

• its mechanical energy

• its conservative energy

• its spring-release energy

• its universal energy

Why does this class frequently begin with a quiz over the reading assignment?

• to review material from the previous class

• to build your physics vocabulary

• to build classroom cohesiveness

• to help you get a higher average in the grade book