Digital and Analog Waves

The gray plot and red plot attempt to transmit the same signal in the graph below. What is the best conclusion that can be drawn?

• The gray plot is a discrete analog signal.

• The red plot is a discrete digital signal.

• The red plot is a discrete analog signal.

• The red plot cannot transmit a useful signal because of its box like shape.

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What are some major differences between analog and digital signals? Select all that apply.

• Analog sends continuous wave signals but digital sends wave pulse signals.

• Digital sends continuous wave signals, but analog sends wave pulse signals.

• Analog sends continuous wave signals but digital sends discreet wave pulse signals.

• Digital sends continuous wave signals, but analog sends discreet wave pulse signals.

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NGSS.HS-PS4-2

What is the amplitude of the blue wave?

• 1

• 2.5

• 2

• 3

• 4

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NGSS.MS-PS4-1

In some situations, digital cable will produce a much crisper image than analog. What is one important cause of this?

• Digital signals are not as susceptible to noise as analog.

• Analog is incapable of producing images as crisp as digital.

• Digital is always a better option than analog.

• Analog signals transmit in discrete pulses which decreases transmission quality.

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NGSS.HS-PS4-2

What is the wavelength of this wave?

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NGSS.HS-PS4-1

What is the amplitude of this wave?

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What part is represented by the blue lines?

• Crest

• Resting Point

• Wavelength

• Amplitude

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What is a wavelength?

• Wavelength is the length of one full wave, it has this symbol: ⋋

• wavelength measures the amount of radiation

• a situation where light is bent in such a direction that it cancels itself out

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NGSS.HS-PS4-1

The following is the graph of ___________________________

• An analog signal

• A digital signal

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NGSS.HS-PS4-1

NGSS.HS-PS4-5

The following is the graph of ___________________________

• An analog signal

• A digital signal

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NGSS.HS-PS4-5