This is a real picture of a polar taken at a zoo. Fortunately for the polar bear, its head is actually connected to its body. Why does it look like the head is separate from the body?

• Light waves are bouncing as they pass from air to water.

• Light waves are not passing from the air to the water.

• Light waves are traveling in a straight line as they pass from air to water.

• Light waves are bending as they pass from air to water.

Tags

NGSS.MS-PS4-2

Why is it a good idea to wear dark colors in the winter and not the summer?

• Light waves are striking the dark material and bouncing off of it. Energy from the wave gets converted to thermal energy.

• Light waves are striking dark material and going through it. Energy from the wave gets converted to thermal energy

• Light waves are striking the dark material and staying in it. Energy from the wave gets converted to thermal energy.

• Light waves are striking the dark material and being bent as they pass through. Energy from the wave gets converted to thermal energy.

Tags

NGSS.MS-PS4-2

Most rooms have hard flat walls. However, music studios have soft, foam-like material on them. Studios use these materials to prevent...

• sound waves hitting the walls from bouncing back.

• sound waves hitting the wall from staying in the walls.

• sound waves hitting the wall from passing all the way through them.

• sound waves hitting the wall from bending.

Tags

NGSS.MS-PS4-2

Why does the dog think he is looking at another dog?

• Light waves are striking the mirror and bouncing off of it.

• Light waves are striking the mirror and going straight through it.

• Light waves are striking the mirror and going into it without going out the other side.

• Light waves are striking the mirror and being bent as they go through it.

Tags

NGSS.MS-PS4-2

Why does the arrow appear to change direction as water is poured into the glass? You can try this experiment at home.

• Light waves are bouncing as they pass through air, glass and water.

• Light waves are traveling in a straight line as they pass through air, glass, and water.

• Light waves are not passing through the air, glass, and water.

• Light waves are bending as they pass through the air, glass, and water.

Tags

NGSS.MS-PS4-2

Which two wave behaviors are responsible for us seeing different colors?

• Refraction

• Reflection

• Diffraction

• Transmission

• Absorption

Tags

NGSS.MS-PS4-2

Which wave behavior describes the process that occurs when a wave goes through a new substance?

• Absorption

• Reflection

• Diffraction

• Refraction

• Transmission

Tags

NGSS.MS-PS4-2

Which wave behavior describes the process that occurs when a wave enters a new substance but stays in the new substance?

• Absorption

• Reflection

• Diffraction

• Refraction

• Transmission

Tags

NGSS.MS-PS4-2

Which wave behavior describes the process that occurs when a wave encounters a new substance and bounces off in the opposite direction?

• Absorption

• Reflection

• Diffraction

• Refraction

• Transmission

Tags

NGSS.MS-PS4-2

Sunglasses lenses are normally darker colored so they can __________ light getting to your eyes, but it is also important they can ___________ light since you need to see through them.

• absorb; transmit

• refract; diffract

• reflect; transmit

• diffract; absorb

Tags

NGSS.MS-PS4-2