Light and Sound

When the molecules in a sound wave are pressed together.

• echolocation

• sound

• compression

• electromagnetic spectrum

A lens such that a parallel beam of light passing through it is caused to diverge or spread out

• concave lens

• compression lens

• convex lens

• Doppler Effect

Tags

NGSS.MS-PS4-1

A lens such that a beam of light passing through it is brought to a point or focus

• concave lens

• convex lens

• compression

• focal point

Tags

NGSS.MS-PS4-2

Doppler Effect is described as......

• An observed change in frequency of a wave when the source or observer is moving

• an observed change in frequency of a wave when the source or observer is standing still

• the use of reflected sound waves to find objects

• a wave that can travel through empty space or matter and consists of changing electric and magnetic fields

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The use of reflected sound waves to find objects

• electromagnetic spectrum

• law of reflection

• reflection

• echolocation

Tags

NGSS.MS-PS4-2

Electromagnetic spectrum is described as......

• all wavelengths of light (the ones we can see and the ones we cannot see)

• red, green & blue are the primary colors of light

• the wavelengths of light we can see on the electromagnetic spectrum

True or False: A wave that can travel through empty space or matter and consists of changing electric and magnetic fields is called an electromagnetic wave

• True

• False

• Neither

Tags

NGSS.MS-PS2-3

True or False: The point at which water or waves meet after reflection or refraction is called the focal point

• False, rays instead of water

• False, sound instead of water

• True

• False rays instead of waves

The angle at which light hits an object will be the same as the angle at which it bounces off the object (angle of incidence)

• primary colors of light

• law of reflection

• rarefaction

• reflection

Tags

NGSS.MS-PS4-2

The primary colors of light are:

• red, yellow, blue

• red, green, blue

• red, blue, yellow

• green, blue, yellow