Unit 12 Study

Energy can be exchanged for ________________.

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

Tags

NGSS.HS-PS3-2

________________________: the ability to do work.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

NGSS.HS-PS3-5

In a closed system, the total amount of energy remains the same.

• True

• False

The energy found in food molecules is an example of potential energy.

• True

• False

Tags

NGSS.HS-LS1-7

How much gravitational potential energy does an 80.0 kg skydiver have if he is about to jump out of an airplane 3850 m above the ground? Answer should be in kJ.

A golfer swings a club with a mass of 0.33 kg at 44.5 m/s and hits a golf ball that has a mass of 0.045 kg. If all the club's energy is transferred to the ball, how fast will the ball travel?

Tags

NGSS.HS-PS2-2

NGSS.HS-PS3-1

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

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-1

The sum of all forms of kinetic and potential energy in a system is called _______________________________.

What are the two primary forms in which energy is "lost" during energy transformations?

• heat

• light

• sound

• temperature

Tags

NGSS.HS-PS3-4