Wave Unit Review _T

Observing Waves

Using our senses to describe a wave's properties

​Waves Transfer Energy

• ​Matter is anything that has mass and takes up space.

• ​Sound, light, and heat are energy, not matter.

• ​To transfer is to move from place to place.

• Waves transfer energy, but they cannot transfer matter.

Categorize

Options (12)

Has mass

Takes up space

Car

Horse

Pencil

Waves cannot transfer this

Does not have mass

Does not take up space

Light

Heat

Sound

Waves can transfer this

Sort Energy vs. Matter

Energy

Matter

Open Ended

"Three examples of energy are ____, ____, and ____."

Multiple Choice

To _____ is to move from place to place.

• Transfer

• Transition

• Tread

Dropdown

"Waves transfer ​

Select answer

, but they cannot transfer ​

Select answer

."

​Review - Wave Diagrams

• We cannot see waves of energy, so we draw diagrams to help us make observations.

• ​The amplitude tells us the amount of energy in the wave.

• ​The wavelength helps us to identify the color of the wave.

Labelling

Label the wave.

Drag labels to their correct position on the image

Trough

Crest

Zero Line

Amplitude

Wavelength

Match

Match the following

• No energy

• Highest Point

• Lowest Point

• Zero Line to Crest

• Crest to Crest

Zero Line

Crest

Trough

Amplitude

Wavelength

• Zero Line

• Crest

• Trough

• Amplitude

• Wavelength

Multiple Choice

The ______ can help you to identify the color of a light wave.

• Amplitude

• Wavelength

• Zero Line

Multiple Choice

The _____ can help you identify the amount of energy in the wave.

• Amplitude

• Wavelength

• Zero Line

Multiple Choice

A wave with no energy has just a ____.

• Trough

• Amplitude

• Crest

• Wavelength

• Zero Line

Dropdown

I predict that Wave ​

Select answer

has more energy because ​

Select answer

.

​Observing Energy

• ​A sound wave transfers energy from a vibrating object to our ears.

• A light wave transfers energy from the Sun to our eyes.

• ​Nerves carry a message from our ears to our brain, and we hear the sound and see the light.

Match

It gets transferred.

• What?

• From Where?

• To Where?

• How?

Energy

A Vibrating Object

Our Ears

By a Sound Wave

• Energy

• A Vibrating Object

• Our Ears

• By a Sound Wave

Dropdown

Sound waves carry energy from a ​

Select answer

to ​

Select answer

.

Multiple Choice

How does energy get transferred from a vibrating object to our ears?

• By sound waves

• By light waves

• By nerves

Multiple Choice

How does information get transferred from our ears to our brain?

• By sound waves

• By light waves

• By nerves

Match

It gets transferred.

• What?

• From Where?

• To Where?

• How?

Energy

The Sun

Our Eyes

By a Light Wave

• Energy

• The Sun

• Our Eyes

• By a Light Wave

Dropdown

Light waves carry energy from ​

Select answer

to ​

Select answer

.

Multiple Choice

How does energy get transferred from the Sun to our eyes?

• By sound waves

• By light waves

• By nerves

Multiple Choice

How does information get transferred from our eyes to our brain?

• By sound waves

• By light waves

• By nerves

​Light vs. Sound Waves

• ​Both light and sound waves carry energy, but not matter.

• ​Sound waves need a medium, like water or air, to travel through.

• ​Light waves do not need a medium.

• ​Space is silent because the sound waves cannot travel.

• ​We can see light in space because light waves can travel without a medium.

Multiple Choice

The matter a wave travels through is called the ____.

• Amplitude

• Frequency

• Medium

Multiple Choice

____ waves need a medium to travel through.

• All

• Light

• Sound

Multiple Choice

In Space, there is no medium so there is no ____.

• Light

• Sound

• Light or Sound

Multiple Choice

Why can sunlight travel through space?

• Light uses a special medium.

• Light does not need a medium.

• Everything can travel in space.

Multiple Choice

A firecracker explodes in space. You can ____.

• Hear it, but not see it.

• See it, but not hear it.

• Not hear or see it.

• Hear it and see it.

Open Ended

"We cannot hear sounds in space because ___.

We cannot hear sounds in space but we can ___."

​When Light Hits Objects

• ​When light hits an object, three things might happen.

• ​Reflect - The light bounces off the object and moves in a new direction.

• ​Absorb - The light enters the object and stops moving.

• ​Transmit - The light goes through the object and continues in the same direction.

Multiple Choice

Light that hits an object may _____.

• Disappear forever

• Reflect

  Absorb

  Transmit

Match

Match the diagram to the label.

Reflect

Absorb

Transmit

• Reflect

• Absorb

• Transmit

Match

Match the description to the process.

• Light passes through

• Light bounces back

• Light hits the object and stops

Transmit

Reflect

Absorb

• Transmit

• Reflect

• Absorb

Match

Match the tool to the likely effect on light.

• Clear objects

• Shiny objects

• Black objects

Transmit

Reflect

Absorb

• Transmit

• Reflect

• Absorb

Multiple Choice

When objects absorb light, they begin to feel ____.

• Sad

• Hot

• Cold

Dropdown

I need to create a new cover for the TV that will still let you see the light from the screen.

I would make it out of ​

Select answer

because this object will ​

Select answer

the light.

Open Ended

Which shirt will be more comfortable for playing basketball outside in the summer?

"I think the _____ shirt will be more comfortable because _______."