Interactions of Waves

Why does this block appear red?

• The object gives off red light.

• White light is shining on the object, but it only reflects red.

• White light is shining on the object, but it only absorbs the red.

• Only red light is hitting the object.

Which wave has the most energy?

• Red because it has the longest wavelength.

• Red because it has the greatest amplitude.

• Violet because it has the highest frequency.

• Violet because it has the lowest amplitude.

Tags

NGSS.MS-PS4-1

How are these waves different?

• The top wave has more energy because it has a higher amplitude.

• The top wave has more energy because it has a higher frequency.

• The bottom wave has more energy because it has a higher amplitude.

• The bottom wave has more energy because it has a higher frequency.

• The waves are the same.

Tags

NGSS.MS-PS4-1

When white light is shining through a blue filter onto a red object, what color with the object appear?

• Blue because the blue light is the only light hitting the object.

• Purple because the red light will mix with the red object.

• Black because the red object will absorb the blue light and no light will be reflected.

• Black because the red object will reflect the blue light.

Tags

NGSS.MS-PS4-2

The type of interference that creates a larger amplitude is

• constructive interference.

• destructive interference.

• interference.

• inductive interference.

Tags

NGSS.MS-PS4-1

This occurs when a wave hits a surface and bounces back.

• diffraction

• refraction

• reflection

• standing wave

Tags

NGSS.MS-PS4-2

This type of interference of waves creates a smaller amplitude.

• destructive interference

• standing waves

• constructive interference

• big interference

Tags

NGSS.MS-PS4-1

When waves hit a barrier like a rock, the waves bend and travel around the object before spreading out again. This is...

• reflection

• diffraction

• refraction

Tags

NGSS.MS-PS4-2

This type of interference is demonstrated by putting a straw in a glass of water.

• diffraction

• refraction

• reflection

• standing wave

Tags

NGSS.MS-PS4-2

A solid, liquid, or gas is a ________________ for a wave.

• matter like thing

• force

• balanced force

• medium

Tags

NGSS.MS-PS4-2