8th - Waves in Media

How does a ray model describe how a wave moves?

• It recreates a wave on a larger scale

• It forces waves to move in different directions

• It can predict what a wave will do

• It describes how a wave behaves moving between mediums

Tags

NGSS.MS-PS4-2

What happens when a wave meets a boundary between two media?

• It disappears

• It changes directions

• It keeps going in a straight line

• It causes the particles to scatter

Tags

NGSS.MS-PS4-2

Which of these describes a wave that reflects when it meets a boundary between two media?

• It scatters in all directions

• It bends in a perpendicular direction

• It pushes through the media in the same direction

• It bounces back and changes direction.

Tags

NGSS.MS-PS4-2

Transmission describes what happens when . . .

• A wave passes into a new medium and travels through

• Multiple waves exchange energy

• A wave splits into two

• Waves collide

Tags

NGSS.MS-PS4-2

Which of these allows a person to hear noise under water?

• Absorption

• Transmission

• Refraction

• Reflection

Tags

NGSS.MS-PS4-2

Transmission into a new medium may change a wave's . . .

• speed

• direction

• amplitude and wavelenght

• all of these

Tags

NGSS.MS-PS4-2

What determines how much of a wave is transmitted when it meets a new medium?

• Speed

• Amplitude

• Wavelength

• The properties of the two media

Tags

NGSS.MS-PS4-2

Refraction is the bending of a wave . . .

• when amplitude suddenly changes

• when it changes frequency

• when it changes speed

• when it divides into different directions

How would a wave behave when passing from deep to shallow water?

• It will bend and move more slowly

• It will continue on its path, but speed up

• It will continue on its path, but slow down

Tags

NGSS.MS-PS4-2

When would a wave NOT bend when meeting a new medium?

• When it passes between similar media

• When it passes from a solid to a liquid

• When it passes from liquid to a solid

• When its direction is perpendicular to the boundary

Tags

NGSS.MS-PS4-2