Waves and Signals Quiz

What is the main difference between analog and digital signals?

• Analog signals are more reliable than digital signals.

• Analog signals are digital, while digital signals are analog.

• Analog signals are faster than digital signals.

• Analog signals are continuous, while digital signals are discrete.

Which of the following best describes frequency?

• Number of occurrences of a repeating event per unit of time.

• The amount of force applied

• The distance between two points

• The size of an object

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NGSS.HS-PS4-1

What is the unit of frequency?

• Watt (W)

• Volt (V)

• Ampere (A)

• Hertz (Hz)

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NGSS.HS-PS4-1

Which of the following best describes amplitude?

• The speed at which a wave travels

• Maximum displacement or distance from the equilibrium position

• The number of waves passing a point per second

• The time it takes for one complete cycle

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NGSS.MS-PS4-1

Which type of signal can have an infinite number of values?

• Digital signal

• Binary signal

• Analog signal

• Discrete signal

Which type of signal is represented by a series of 0s and 1s?

• Digital signal

• Continuous signal

• Binary signal

• Analog signal

Which type of signal is more resistant to noise interference?

• Digital signals

• Analog signals

• Wireless signals

• Optical signals

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NGSS.HS-PS4-2

Which type of signal is used in traditional telephone systems?

• Wireless

• Analog

• Digital

• Fiber optic

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NGSS.MS-PS4-3

Which type of signal is used in modern computer systems?

• Binary

• Digital

• Wireless

• Analog

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NGSS.MS-PS4-3