Conservation of Energy and Energy Transformation

"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?

• Law of Conservation of Mass

• Newton's Second Law

• Law of Conservation of Energy

• Newton's Third Law

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical to mechanical to electrical to radiant

• radiant to electrical to sound

• chemical to radiant to mechanical to electrical

• electric to radiant to chemical

Tags

NGSS.MS-PS3-5

Which energy transformation occurs in a toaster?

• chemical to electric

• electric to thermal

• kinetic to chemical

• thermal to potential

Which of the following devices transforms electrical energy into mechanical energy?

• An e-reader

• a fan

• a manual pencil sharpener

• ipod

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

• mechanical energy to chemical energy

• thermal energy to mechanical energy

• chemical energy to mechanical energy

• mechanical energy to thermal energy

Tags

NGSS.MS-PS3-5

NGSS.MS-LS2-3

The roller coaster cart has the most kinetic energy at position-

• W

• X

• Y

• Z

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

• thermal to electrical

• mechanical to thermal

• electrical to thermal

• electrical to sound

According to the Law of Conservation of Energy, energy cannot be _________ or ____________.

• destroyed, destroyed

• created, saved

• created, destroyed

• lost, found

Tags

NGSS.MS-PS3-5

Where is the kinetic energy the greatest?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS3-1

A hairdryer converts -- 

• electrical energy into chemical

• electrical energy into thermal

• chemical energy into mechanical

• thermal energy into mechanical

Tags

NGSS.MS-PS3-3