Waves intro group session

Which of the following mechanical waves has the most energy? (Assume the wave diagrams are drawn using the same scale.)

• X
• Z
• W
• Y

Tags

NGSS.HS-PS4-1

All electromagnetic waves travel at the speed of light (300,000,000 m/s). However, even at this speed, if a radio transmission is sent to astronauts on the Moon, there is a delay between the time that the message was sent and the time that the astronauts receive it. Why?

• Asteroids and other space debris interfere with radio transmissions from Earth.
• The Moon is very far away from the Earth and it takes time for radio messages to travel.
• Radio waves are delayed as they pass through Earth's atmosphere.
• Radio waves travel at a slower speed through a vacuum than they do through air.

Tags

NGSS.HS-PS4-5

Two transverse waves are traveling through the same media. The wavelengths and periods of the waves are the same, but one wave has a greater amplitude than the other. Which of the following statements is true regarding the two waves?

• The waves have different frequencies.
• The waves are traveling at different velocities.
• All of these statements are correct.
• The waves possess a different amount of energy.

Tags

NGSS.HS-PS3-2

Examine the diagram of the electromagnetic spectrum below.   Electromagnetic waves have different positions on the electromagnetic spectrum because

• they transfer different amounts of energy.
• they have different wavelengths.
• they have different frequencies.
• all of these

Tags

NGSS.HS-PS4-1

Which of the following statements are true?

I.Electromagnetic waves must be propagated through solid, liquid, or gas particles.

II.Electromagnetic waves are generated over a range of frequencies.

III.Electromagnetic waves do not require a medium through which to travel.

IV.All electromagnetic waves travel at the speed of light.

• I, II, and IV only
• I and IV only
• II, III, and IV only
• II and III only

Tags

NGSS.HS-PS4-1

According to this chart, the longer the wavelength is,

• the greater the frequency of the wave.
• the larger the amplitude of the wave.
• the less energy the wave has.
• the faster the wave travels.

Tags

NGSS.HS-PS4-1

Which of these is true of light waves?

• They cannot pass through solids.
• They do not diffract around corners.
• They do not need a medium through which to travel.
• They are longitudinal waves.

Tags

NGSS.MS-PS4-2

A sound wave requires

• electromagnetic radiation to travel through.
• a medium to travel through.
• air to travel through
• a vacuum to travel through.

Which statement describes a difference between electromagnetic and mechanical waves?

• Mechanical waves do not transfer energy, but electromagnetic waves do.
• Mechanical waves cannot be longitudinal, but electromagnetic waves can.
• Electromagnetic waves do not require a medium, but mechanical waves do.
• Electromagnetic waves cannot move particles, but mechanical waves can.

What kind of waves can travel through space?

• electromagnetic waves
• compressional waves
• longitudinal waves
• sound waves

Tags

NGSS.HS-PS4-3