Waves

Electromagnetic waves can transfer energy without a(an) 

• medium

• electric field 

• magnetic field

• change in either a magnetic or an electric field 

Tags

NGSS.HS-PS4-3

Which is true of a mechanical wave?

• It must have a medium

• It must travel in empty space.

• It can travel in a vacuum.

• Both sound and light are examples.

What is the wavelength of a wave?

• the size of the disturbance

• the amount of time that occurs in one full cycle

• the distance between two crests of a wave

• the amount of cycles that occur in a given time

What kind of wave is pictured below?

• compressional wave

• transverse wave

• sound wave

• mechanical wave

Tags

NGSS.MS-PS4-1

Which part of the wave is this?

• Crest

• Trough

• Compression

• Rarefaction

Tags

NGSS.MS-PS4-1

Which of the following is true for sound waves?

• They require a medium.

• They are unrelated to vibrations.

• They cannot travel through liquids

• They can travel in a vacuum

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

How do electromagnetic and mechanical waves compare?

• Mechanical waves can only travel through a vacuum, but electromagnetic waves can travel through a solid, liquid, or gas.

• Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a gas.

• Mechanical waves can only travel through a solid, liquid, or gas, but electromagnetic waves can travel through a vacuum.

• Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a solid.

A student asks a series of questions about a wave. The answer to which question will allow the student to determine whether the wave is electromagnetic or mechanical?

• Does it require a medium in order to travel?

• Can it pass through air and water?

• Does it have a measurable speed?

• Does it have a measurable frequency?

A student is measuring the distance between the crest and the rest position of both a mechanical wave and an electromagnetic wave. Which question is the student trying to answer?

• What is the speed of the waves?

• What is the amplitude of the waves?

• What is the wavelength of the waves?

• What is the frequency of the waves?

Tags

NGSS.MS-PS4-1

Which distance represents the wavelength?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS4-1