Waves and Information Review

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Front

What are the main parts of a wave?

Back

The main parts of a wave are the crest (the highest point), trough (the lowest point), amplitude (the height of the wave), and wavelength (the distance between two consecutive crests or troughs).

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NGSS.MS-PS4-1

Front

What is amplitude in a wave?

Back

Amplitude is the maximum height of a wave from its rest position. It measures the energy of the wave.

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NGSS.MS-PS4-1

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points that are in phase on a wave, such as from crest to crest or trough to trough.

Front

What is the difference between transverse and longitudinal waves?

Back

In a transverse wave, the motion of the medium is perpendicular to the direction of the wave. In a longitudinal wave, the motion of the medium is parallel to the direction of the wave.

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NGSS.HS-PS4-5

Front

What does the crest of a wave represent?

Back

The crest of a wave represents the highest point of the wave.

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NGSS.MS-PS4-1

Front

What does the trough of a wave represent?

Back

The trough of a wave represents the lowest point of the wave.

Front

What is a satellite in a mobile TV system?

Back

A satellite is a device that receives and transmits signals to and from the Earth, allowing for communication and broadcasting.

Tags

NGSS.MS-PS4-3

Front

What is the function of an antenna in a communication system?

Back

An antenna is used to send and receive signals in a communication system.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Front

How does a camera model the human eye?

Back

A camera has parts that function like the human eye: the lens focuses light like the eye's lens, the digital sensor captures images like the retina, and the aperture controls light entry like the pupil.