Light Review

Light is a form of...

• energy

• heat

• sound

• color

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

By passing light through a prism, you can tell _______________

• that blue light is brighter than white lights

• that white light is made up of different colors

• the original source of light

• the weight of the prism

Tags

NGSS.MS-PS4-2

The picture shows a pencil in a container of water. Why does the pencil look as if it's broken?

• Because light rays are bent when they pass from air into water and from water into air.

• Because the water separates the light into many colors.

• Because the shiny glass reflects light.

• Because the part of the pencil outside the water casts a shadow by the water.

Tags

NGSS.MS-PS4-2

What does it mean when an object is opaque?

• It can reflect light.

• It allows all light to pass through.

• It does not allow any light to pass through.

• It can bend light.

Tags

NGSS.MS-PS4-2

What is reflection?

• Bending of light as it passes through a material

• The disappearance of light into a surface

• The bouncing of light off a surface

• The creation of light

Tags

NGSS.MS-PS4-2

Why do we wear light-colored clothes in summer?

• They absorb more light energy.

• They reflect more light energy.

• They create more thermal energy.

• They are more fashionable.

What color has the LONGEST wavelength?

• violet

• orange

• green

• red

Answer explanation

Notice the wavelength on the chart.

Red = 700's

Violet 400's

Red has the longest wavelength

Violet has the shortest wavelength

When light bounces off a smooth surface, this is known as which of the following?

• deflection

• reflection

• refraction

• absorption

Tags

NGSS.MS-PS4-2

This picture shows a duck swimming in a lake. A student sees a mirror image of a duck in the water off the lake. What causes this mirror image?

• reflected light

• refracted light

• absorbed light

• black light

Tags

NGSS.MS-PS4-2

Bending of light as it passes from one material to another is known as which of the following?

• absorption

• mirror image

• reflection

• refraction

Tags

NGSS.MS-PS4-2