EMS Test

The image shows a mirror reflecting light. What wave behavior is shown by light wave C and E?

• absorption

• diffraction

• reflection

• refraction

Tags

NGSS.MS-PS4-2

The diagram shows four thin beams of light interacting with a material. Which beam best shows absorption?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS4-2

Points C & D on this image represent breaks in a dam that is holding water. Which type of wave behavior is represented by the water passing through the dam and why?

• Diffraction because the waves are coming together and getting bigger.

• Diffraction because the water is bending around the opening in the dam.

• Refraction because the water waves are changing speed going from the air to the water in the picture.

• Reflection because the angle of the waves at Point C must be equal to the waves at Point D.

Tags

NGSS.MS-PS4-2

Clear glass is an example of a ____ material.

• translucent

• medium

• opaque

• transparent

Tags

NGSS.MS-PS4-2

A piece of blue paper appears blue because the paper

• reflects all colors of light except blue.

• absorbs all colors of light except blue

• refracts all colors of light except blue

• is transparent to all colors of light except blue

Tags

NGSS.MS-PS4-2

A person standing waist-deep in a swimming pool appears to have short legs because of light

• reflection

• diffraction

• refraction

• absorbing

Tags

NGSS.MS-PS4-2

When a wave hits a surface through which is CANNOT pass and bounces back, it undergoes

• reflection

• refraction

• constructive interference

• destructive interference

Tags

NGSS.MS-PS4-2

When a bear sees a fish in the water, it uses practical experience to know exactly where the fish is actually located. The image of the fish appears in a different location because the light rays forming this image.

• are bent due to refraction between the water and air

• are bent due to the different directions the fish is swimming

• are bent due to the dissolved particulates in the water

• are bent due to the time of day

Tags

NGSS.MS-PS4-2

Seeing light shining beneath a closed door is an example of

• reflection

• refraction

• diffraction

• absorption

Tags

NGSS.MS-PS4-2

Which of the following is the best example of diffraction?

• A straw appearing to bend when you place it in a glass of water.

• A prism breaking a beam of light into its component colors.

• The sun set causes a shadow of a large tree.

• The music on your stereo getting louder when you turn up the volume.

Tags

NGSS.MS-PS4-2