HMH 4th Grade Unit 3 Pretest -Waves and Information Transfer

Which term means “a disturbance that transmits energy”?

• wave

• volume

• vibration

• amplitude

Tags

NGSS.MS-PS4-1

Which term best describes the form sound takes as it travels?

• gas

• waves

• music

• molecules

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which object will reflect the most light?

• mirror

• black paper

• wooden door

• window glass

Tags

NGSS.MS-PS4-2

How does a cell phone send a picture to another cell phone?

• It changes the picture into text.

• It sends the picture through sound waves.

• It downloads the picture into light waves.

• It codes the picture into digital information.

Tags

NGSS.MS-PS4-3

What does the diagram show?

• Light always bounces off opaque objects.

• A mirror produces a clear reflected image.

• A rough surface reflects light in different directions.

• Light waves strike a mirror and are reflected at the same angle.

Tags

NGSS.MS-PS4-2

Which term is used to identify the distance between the crests of a wave?

• sound

• volume

• amplitude

• wavelength

Which of these is the definition of the term amplitude?

• the amount of energy in a wave

• the back-and-forth movement of an object

• a unit of measurement for the volume of a sound

• the distance between one crest to the next crest of a wave

Tags

NGSS.MS-PS4-1

Which conclusion about light energy can be made from this diagram?

• The birds absorb all of the light energy.

• The water absorbs all of the light energy.

• Light is reflected by the water and by the bodies of the birds.

• Light is refracted by the water, making the birds appear at a different angle.

Tags

NGSS.MS-PS4-2

Humans are not the only organisms that use patterns to transfer information. Which example shows how another organism uses a pattern to transfer information?

• A bird builds a nest every spring.

• A plant has six petals on each flower.

• A zebra has repeating black and white stripes.

• A dolphin uses a series of clicks and whistles.

Why can humans see objects such as a desk or chair?

• because these objects refract light

• because these objects reflect light

• because these objects absorb light

• because these objects give off their own light

Tags

NGSS.4-PS4-2