PS

The straw in Bryan’s water appears to be broken. Which of the following best explains why the straw looks broken at the surface of the juice?

• Light is refracted as it moves from air to the water.

• Light is reflected as it moves from air to water.

• Light is absorbed as it moves from air to the water.

Tags

NGSS.MS-PS4-2

Which electromagnetic waves can be detected by human eyes?

• radio waves

• gamma rays

• visible light

Which of the following is a light source?

• a lens

• a mirror

• a light bulb

Which of the following helps you cook food in a microwave oven?

• sound energy

• light energy

• empty space

Tags

NGSS.MS-PS4-2

What does light energy absorbed by a substance change into?

• visible light

• gamma rays

• thermal energy

Tags

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The light made up of all colors of visible light is

• black

• white

• yellow

Which of the identical balls has the largest amount of gravitational potential energy?

• ball 1

• ball 2

• ball 3

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

A form of energy carried over wires and used in many appliances is

• electricity

• sound

• light

What do magnets pull on?

• iron

• glass

• aluminum

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A push or a pull is a

• momentum

• speed

• force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2