Unit 4 Test Review: Waves

A wave that can travel through empty space (does not need a medium/matter).

• Mechanical Wave

• Electromagnetic Wave

Tags

NGSS.MS-PS4-1

When two waves combine to create a larger amplitude.

• Constructive Interference

• Destructive Interference

• Law of Reflection

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NGSS.MS-PS4-1

When a wave bounces off a surface.

• Crest

• Transverse

• Reflection

• Wavelength

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Sound travels slower through materials that are less dense, such as:

• Air

• Sea Water

• Wood

• Steel

Tags

NGSS.MS-PS4-2

Low Amplitude = __________

• Quieter Sounds

• Louder sounds

Tags

NGSS.MS-PS4-1

Low frequency = _______ Pitch

• Low
• High

Tags

NGSS.4-PS4-1

Which wave would be loud and have a high pitch?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

A smaller instrument like the violin, will make a higher pitched sound. This is because the violin strings...

• ...are shorter, so they vibrate more.

• ...are longer, so they vibrate more.

• ...are shorter, so they vibrate less.

• ...are longer, so they vibrate less.

Tags

NGSS.MS-PS4-1

Which of these provides the best explanation for why the pencil appears broken?

• The pencil absorbs the light rays that hit it.

• Water reflects light rays away from the pencil.

• Light rays are bent by the water in the glass.

• The surface of the water reflects the light rays.

Tags

NGSS.MS-PS4-2

Type of mirror used by dentists to view the patient's teeth so that the image is right side up and magnified.

• Plane

• Convex

• Concave