Reflection and Absorption

How can you see your face in the mirror?

• Light is reflected from the mirrors surface.

• Light is absorbed by the mirror.

• Light is transmitted through the mirror.

Tags

NGSS.MS-PS4-2

In terms of waves, what does reflect mean?

• Reflect means to take in the wave’s energy.

• Reflect means the wave’s energy bounces off of it.

• Absorb means to take in the wave’s energy.

• Absorb means a wave’s energy bounces off of it.

Tags

NGSS.MS-PS4-2

In terms of waves, what does absorb mean?

• Reflect means to take in the wave’s energy.

• Reflect means the wave’s energy bounces off of it.

• Absorb means to take in the wave’s energy.

• Absorb means a wave’s energy bounces off of it.

Tags

NGSS.MS-PS4-2

What happens when the sound is absorbed?

• The sound wave changes direction as it travels into the pillow.

• Some of the sound’s energy bounced off the pillow back toward Josh.

• Some of the sound wave’s energy was converted into other forms of energy in the pillow.

Tags

NGSS.MS-PS4-2

When red or blue light shines on a certain ball, the ball looks black. But, when green light shines on it, it appears green.

What does this tell you about how the ball reflects light?

• It only reflects green frequencies of light.

• It reflects all frequencies of light except green light.

• It reflects the green, red, and blue frequencies of light.

Tags

NGSS.MS-PS4-2

A group of students is measuring the amount of energy sand will absorb from light. They place 100 grams, of sand at room temperature under a lamp for 30 minutes. Which measurement would best show how much energy the sand absorbed?

• the sand’s change in temperature

• the light frequencies transmitted through the sand

• the sand’s change in mass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Suzie was wearing her favorite cap and wondered what makes the cap look red in daylight.

Which statement explains why Suzie’s cap looks red?

• It absorbs red light and reflects white light.

• It reflects red light and absorbs all other colors of light.

• It absorbs red light and reflects all other colors of light.

Tags

NGSS.MS-PS4-2

Maryann wants to record her voice with a lot of echo. An echo occurs when sound waves bounce off of surfaces. She can cover the walls of her room with different materials.

To record the loudest echo, which type of material should she use?

• A

  A material that will absorb most of the sound.

• A material that will both reflect and absorb sound.

• A material that will reflect most of the sound.

Tags

NGSS.MS-PS4-2

A track team manager is buying cups to serve the team ice water. She learns that a cup’s texture and color affect how much light it reflects or absorbs. Smooth, shiny surfaces reflect more light than rough, textured surfaces.

Which type of cup would be best to keep ice water cold?

• green, textured paper cups

• green, shiny plastic cups

• white, textured paper cups

• white, shiny plastic cups

Tags

NGSS.MS-PS3-3

This image best illustrates ____.

• reflection

• absorption

Tags

NGSS.MS-PS4-2