Communicating with Signals

Front

Signal Noun

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[sig-nuhl]

Back

Signal

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A piece of information communicated through the senses, like sound, light, or touch, to convey a message.

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Example: Traffic lights use red, yellow, and green signals to communicate when to stop, slow down, or go.

Front

Encode Verb

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[en-kohd]

Back

Encode

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To convert information into a specific code or form, allowing it to be sent as a transmittable signal.

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Example: Letters are converted into binary code, showing how information is encoded for transmission.

Front

Transmit Verb

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[trans-mit]

Back

Transmit

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To send or pass on a signal from one place or person to another, which often occurs over a distance.

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Example: The axon of a neuron transmits signals to muscle fibers, showing signal transmission.

Front

Receiver Noun

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[ri-see-ver]

Back

Receiver

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A person or device that gets, accepts, and interprets a signal to understand the information being communicated.

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Example: The image shows how an AM radio receives signals through an antenna, processes them with a tuner, detector, and amplifier, and outputs sound through a speaker.

Front

Morse Code Noun

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[mors kohd]

Back

Morse Code

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A communication method that encodes text information into a series of on-off tones, lights, or clicks for transmission.

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Example: The image shows the Morse Code alphabet, using dots and dashes to represent letters and numbers.

Front

Binary Noun

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[bahy-nuh-ree]

Back

Binary

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A coding system using only two symbols, typically 0 and 1, to represent information for computer processing.

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Example: Shows how binary numbers use powers of 2 to represent values.

Front

Electromagnetic Waves Noun

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[uh-lek-troh-mag-net-ik weyvs]

Back

Electromagnetic Waves

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Waves of energy, like radio or light waves, that are used to transmit signals quickly over long distances.

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Example: The image shows different types of electromagnetic waves, including visible light, with a color spectrum.

Front

Modulate Verb

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[moj-uh-leyt]

Back

Modulate

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To modify a specific property of a wave, such as its amplitude or frequency, in order to carry information.

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Example: The image shows how a message signal changes the amplitude of a carrier wave to transmit information.

Front

Amplitude Noun

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[am-pli-tood]

Back

Amplitude

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The measure of the height or intensity of a wave, which can be varied to carry encoded information.

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Example: The image shows amplitude as the height of a wave, with clear labels and arrows.

Front

Frequency Noun

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[free-kwuhn-see]

Back

Frequency

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The number of waves that pass a fixed point in a specific amount of time, a property used to carry information.

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Example: A wave with few peaks over time shows low frequency, explaining how often waves pass a point.