Communicating with Signals Unit Quiz

What is the definition of a signal? Insert an image of a signal.

Answer explanation

A piece of information that is communicated using the senses.

Tags

NGSS.MS-PS4-3

Besides writing and speech, what other ways of communicating involve sight? Hearing? Insert image examples.

Answer explanation

Sight - body language, traffic sign symbols, emojis, traffic lights

Hearing - car horns, whistles, sirens

What are some devices that let people send or receive messages to or from far away? Insert an image as well.

Answer explanation

Phones, televisions, computers, two-way radios

Tags

NGSS.MS-PS4-1

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Why were communication devices invented, such as radios?

Answer explanation

To send and transmit information using electromagnetic waves or electric signals.

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS4-2

Explain what the amplitude of a wave is.

Answer explanation

The distance between the resting height and the highest point on the wave.

Tags

NGSS.MS-PS4-1

What is the wavelength of a wave? Insert and image as an example.

Answer explanation

The distance between the same point on successive waves.

Tags

NGSS.MS-PS4-1

What is a wave cycle?

Answer explanation

A wave cycle is equal to a wavelength and is traditionally measured from the point at which the wave rise from the resting point.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is a waves frequency?

Answer explanation

The number of times a wave cycle occurs in a certain amount of time or the number of times a wave passes by.

Tags

NGSS.HS-PS4-1

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What is a waves velocity?

Answer explanation

How fast a wave is moving forward.

What is the difference between the frequency and amplitude of a wave?

Answer explanation

Amplitude is a measure of the height of the waves crest or the depth of the trough. Frequency is a measure of the number of cycles of a wave that are completed in a given period of time.

Tags

NGSS.HS-PS4-1