Waves and Properties of Waves

What do playing a guitar, banging a drum, and dropping a pebble in the water all have in common?

• They all produce light.

• They all cause vibrations.

• They all convert heat to energy.

• They all need gravity to move.

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*In which medium would sound move the fastest?

• Vacuum

• Air

• Water

• Steel

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The human ear receives sound waves as ____________ and converts them to signals that are processed by the brain.

• electricity

• pitch

• vibrations

• light

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A tone that is lower in pitch is lower in what characteristic?

• Frequency

• Wavelength

• Resonance

• Loudness

Which statement best explains why thunder is heard after lightning is seen?

• Light travels faster than sound.

• Light travels slower than sound.

• Thunder is produced by the impact of lightning against the ground.

• The eye works faster than the ear.

Which waves require a medium (matter) to travel?

• x-ray

• microwave

• sound 

• water

Which of the following can act as media for a wave? (a)  

• A. Solids only

• B. Liquids only

• C. Gases only

• D. Solids, liquids, and gases

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Which of the following occurs as the frequency of a wave decreases?

• The wavelength increases

• The wavelength decreases

• The wavelength increases and then decreases

• The wavelength remains the same

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8. The lowest part of a transverse wave is known as a (a)   .

• Trough

• Crest

• Compression

• Rarefaction

• Medium

9. The frequency of a wave is measured in (a)   .

• Hertz

• Crest

• Trough

• Compression

• Rarefaction

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