Chapter 14 - Energy - PS

Energy is defined as the ability to

• create potential.

• do work.

• produce power.

• travel distances.

Energy can be exchanged for __________.

• matter

• other forms of energy

• work

• all the above

The SI unit for energy is __________.

• the joule

• the lambert

• the newton

• the watt

Kinetic energy could be described as the energy of __________.

• condition

• motion

• position

• storage

Kinetic energy depends only on __________ and __________.

• accleration; height

• height; velocity

• mass; volume

• speed; mass

Which of the following is the best example of kinetic energy?

• an avalanche flow

• a bundle of firewood

• a case of dynamite

• a compressed spring

A plate of cookies would best be described as having __________ energy.

• chemical potential

• elastic potential

• gravitational potential

• kinetic

Mechanical energy is

• the energy converted by a generator.

• the energy that escapes during an energy transformation.

• the energy that produces power.

• the sum of all forms of kinetic energy and potential energy in a system.

When does an extreme pogo stunt performer reach his maximum gravitational potential?

• at his fastest descent

• at the halfway point of his rebound

• at the top of his jump

• when his stick’s cylinder is at its maximum compression

In which of the following moments would an extreme pogo stick have the greatest amount of kinetic energy?

• as the rider has descended halfway through the air

• as the rider is at the top of his jump

• as the rider’s stick first touches the ground

• as the stick’s cylinder is completely compressed