Light Wave Review

A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug’s color to fade over time. Can light from the sun cause the rug’s color to fade?

• No. Light is not a physical thing, so it cannot change physical things like rugs.

• No. Light can only change things by warming them up, so it cannot cause the rug’s color to fade.

• Yes. The rug can absorb energy from the light, causing the rug’s color to fade.

• Yes. Light from the sun can pull energy out of the rug, causing the rug’s color to fade.

Malachi uses some glue to fix a broken plate. He puts the glue under a desk lamp but the glue doesn’t dry. Then he puts the glue out in the sun and it dries. Why does light from the sun dry the glue when light from the desk lamp does not?

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

Your friends say that they saw a special nail polish that changes color when it is out in the sun. Can light from the sun cause the nail polish to change color?

• No. Light is not a physical thing, so it cannot change physical things like nail polish.

• Yes. Light from the sun can pull energy out of the nail polish, causing it to change color.

• Yes. The nail polish can take in energy from the light, causing it to change color.

• No. Light can only change things by warming them up, so it cannot cause the nail polish to change color.

Tags

NGSS.MS-PS4-2

Light ...

• can only be reflected

• only comes in one form

• carries energy from one place to another, even through empty space

• is a type of wave that carries energy from one place to another, even through empty space

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

In order for light to change an object, that object must _______ the light and its __________.

• reflect, wavelength

• transmit, amplitude

• reflect, energy

• absorb, energy

Tags

NGSS.MS-PS4-2

When a material absorbs energy from light the energy causes the material...

• to stay the same

• to transmit the light

• to reflect the light

• to change

Tags

NGSS.MS-PS4-2

Different types of light can change a material ...

• in different ways

• in the same way

• only if it transmits the light

• only if it reflects the light

Tags

NGSS.MS-PS4-2

Which wave has the greatest amplitude?

• The blue wave
• The red wave

Tags

NGSS.MS-PS4-1

The number of waves that passes a point in a certain amount of time.

• Amplitude
• Frequency
• Wavelength
• Magnitude 

Which letter represents wavelength?

• A
• B
• C
• D

Tags

NGSS.MS-PS4-1