MP3 Motion, Waves, Energy, Energy Transfer, and Electricity

What is a force?

• a reflection of an object

• an object speeding up

• a push or a pull on an object

• an object's position

Why would it take more force to move a bowling ball than to move a soccer ball?

• The soccer ball has more mass.

• The bowling ball has more mass.

• The soccer ball has more energy.

• The bowling ball has more energy.

Tags

NGSS.MS-PS2-2

The energy of motion is also known as...

• potential energy

• kinetic energy

• electric energy

• transfer energy

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NGSS.MS-PS3-5

Stored energy is also known as...

• potential energy

• kinetic energy

• electric energy

• transfer energy

Tags

NGSS.MS-PS3-2

Select ALL the choices that show examples of POTENTIAL energy below:

• A child pulling a rubber band back and aiming it at something.

• Kids jumping on a trampoline.

• A dog digging in the dirt.

• A boulder sitting high up on a mountain

• Somebody holding a toy car at the top of a ramp.

Tags

NGSS.MS-PS3-2

_________ are forces that can slow down or stops objects from moving.

• force and motion

• acceleration and velocity

• gravity and friction

• reflection and refraction

Sound is heard when people speak because their vocal chords ________.

• echo

• vibrate

• conduct heat

• expand

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound travels in ________.

• cars

• waves

• straight lines

• circles

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True or False: You can see sound.

• true

• false

__________ is how low or high a sound is.

• pitch

• volume

• mass

• frequency