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Science

6th -

8thgrade

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Signals, Communication and Technology

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Information that is sent as a pattern in a controlled flow of current through a circuit is called?

    wave pulses

    electronic signal

    binary code

    electromagnetic signals

  • 2. Multiple Choice
    30 seconds
    1 pt

    A wave pulse is considered

    a pulse of information sent as a pattern in a controlled flow of current through a circuit

    information sent as patterns in the form of electromagnetic waves, such as radio waves

    a pulse of energy that travels through the circuit when it is closed

  • 3. Multiple Choice
    30 seconds
    1 pt

    How are digital and analog recordings different?

    digital signals are continuous

    analog signals are higher resolution

    digital signals can be better stored electronically

    analog signals consist of numerical values recored at a specific time interval

    digital signals take up more space

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