Electromagnetic Waves Test Review

A student wonders which types of light could heat up an object.

They notice that x-ray light is transmitted through the material and ultraviolet light is reflected off the material.

Based on this information, which type of light is more likely to heat up the material?

• The X-ray light is more likely to heat up the material because the X-ray light can pull energy out of the material when it passes through it.

• The ultraviolet light is more likely to heat up the material because the ultraviolet light bounces off the material, which means that it has more energy.

• There is no way to know because they are two different types of light, and different types of light can change a material in different ways.

• Neither type of light is likely to heat up the material because it does not take in energy from either the X-ray light or the ultraviolet light.

Tags

NGSS.MS-PS4-2

These graphs show the wavelength and amplitude of light coming from three lasers. Could any of these lasers be giving off a different type of light?

• Yes. Laser 2 is giving off a different type of light because Laser 2 has a different wavelength than Lasers 1 and 3.

• Yes. Laser 3 is giving off a different type of light because Laser 3 has a different amplitude than Lasers 1 and 2.

• Yes. All three lasers must be giving off different types of light because every light source gives off its own type of light.

• No. All three lasers must be giving off the same type of light because all three are lasers, and the same kind of light source gives off the same type of light.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following describes electromagnetic waves?

• Electromagnetic waves can have high frequencies with long wavelengths.

• Electromagnetic waves can have low frequencies with short wavelengths.

• Electromagnetic waves can travel at different speeds.

• Electromagnetic waves travel at the same speed.

Tags

NGSS.HS-PS4-1

Nakiya has some red marbles. She notices that sometimes the marbles get warm after being exposed to light. She wonders what type of light can cause the marbles to get warm. The table below shows what happens when different types of light hit the marbles.

X-ray: transmitted through the marbles

Infrared light: absorbed by the marbles

Red light: reflected off the marbles

• The X-ray light can cause the marbles to get warm.

• The infrared light can cause the marbles to get warm.

• The red light can cause the marbles to get warm.

• Any of these types of light can cause the marbles to get warm, because all light carries energy that can cause materials to change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS4-2

A student makes several statements about the wave shown below.

Statements

1. It has an amplitude of 8 cm.

2. It has a wavelength of 10 cm.

3. It is traveling in one direction.

4. It is traveling through a vacuum.

Which of these statements demonstrates that the wave is an electromagnetic wave and not a mechanical wave?

• statement #1

• statement #2

• statement #3

• statement #4

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What do all waves have in common?

• they transfer energy from one place to another

• they transfer matter from one place to another

• they all travel at the same speed

• they all travel in a medium or substance

Ms. A uses a special craft glue to make goodies for all of her students (because she's the nicest, bestest teacher ever). She puts the glue under her desk lamp, but it doesn't dry! But then, she puts the glue out in the sun and it dries! Why does light from the sun dry the glue when the light from the desk lamp does not?

• Because the glue can take in energy from the light from the sun but not the light from the lamp.

• Because light from the sun pulls energy out of the glue and light from the desk lamp does not.

• Because the sun gives off a type of light that carries energy, and light from the desk lamp does not.

• Because light from the sun carries heat molecules, and light from the desk lamp does not.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Why does ultraviolet light damage Ms. A's classroom plants but the regular classroom light does not?

• Because ultraviolet light pulls energy out of the plant, and light in the classroom does not.

• Because ultraviolet light carries energy, and light from the classroom lights does not.

• Because the plant can take in energy from ultraviolet light but not from the light from the classroom lights.

• Because ultraviolet light carries heat molecules, and light from the classroom lights does not.

Tags

NGSS.MS-LS1-5

NGSS.MS-PS4-2

How does melanin provide protection against skin cancer?

• Melanin reflects all types of light.

• Melanin transmits harmful lightwaves before they reach the genetic material.

• Melanin absorbs harmful lightwaves before they reach the genetic material.

• Melanin does not provide protection against skin cancer.

Which statement about electromagnetic waves is NOT true?

• Electromagnetic waves travel at the same speed.

• Electromagnetic waves carry energy.

• Electromagnetic waves can travel through space.

• Electromagnetic waves need a medium to travel through.

Tags

NGSS.MS-PS2-3