Steam

Read the definition. Choose the correct answer.

the highest point of a wave

• matter

• wavelength

• peak

• wave

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anything you can touch or hold

• matter

• wavelength

• peak

• wave

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the distance from one peak to the next

• matter

• wavelength

• peak

• wave

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something that moves energy without moving matter

• matter

• wavelength

• peak

• wave

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facts about something

• data

• information

• cell phone

• communication

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a way of sending information or messages through the telephone, Internet, or radio

• data

• information

• cell phone

• communication

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Morse code uses a system of clicks and pauses to show ___________________.

• facts

• words

• letters and numbers

• lights and sounds

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Amplitude is the ______ of a wave from its resting point.

• time

• sound

• speed

• height

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Waves are made up of peaks and ___________.

• troughs

• frequencies

• lows

• light

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Which frequency has the lowest-sounding pitch?

• 4 Hz

• 40 Hz

• 400 Hz

• 4,000 Hz