SoundJEOPARDY

Sound Energy

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500

Too Much Noise!

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500

Play It Again

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500

I Can’t Hear You

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500

Can We Talk?

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500

Can We Talk?100

• The use of echoes to help animals find their way and food is called….

• Echolocation

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Can We Talk? 200

• Any sounds that are too high for humans to hear are called… (hint: machines can send out these high frequency waves and then make a picture of the echoes)

• UltrasoundReturn to board

Can We Talk? 300

• Sounds below the human hearing range are called….. (hint: elephants make sounds this low)• Infrasound

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Can We Talk? 400

• This common household machine turns sound energy into electrical energy and then back to sound again.

• TelephoneReturn to board

Can We Talk? 500

• This device measures how long it takes for an echo to return. It is generally used by submarines and fishing boats to determine the object’s distance.

• SonarReturn to board

I Can’t Hear You100

• This part of the outer ear contains ear wax….

• Ear CanalReturn to board

I Can’t Hear You 200

• Name the 3 small bones of the middle ear….

• Hammer, Anvil, Stirrup

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I Can’t Hear You 300

• A thin, tight membrane that vibrates……..

• Ear Drum

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I Can’t Hear You 400

• This inner ear structure contain fluid which vibrates tiny hair cells….

• CochleaReturn to board

I Can’t Hear You 500

• Which nerve carries electrical signals to the brain?

• Auditory Nerve

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Play It Again100

• A measurement of how high and squeaky or low and deep a sound is….

• pitchReturn to board

Play It Again 200

• A measure of how many compressions pass a certain point every second.

• FrequencyReturn to board

Play It Again 300

• Frequency is measured in a unit called….

• Hertz (Hz)

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Play It Again 400

• The distance from the top, or crest, of one wave to the next is called….

• Wavelength

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Play It Again 500

• As an object making a sound moves, the pitch changes (think of a motorcycle coming toward you, then passing you). This is called…

• Doppler effectReturn to board

Too Much Noise!100

• What well-known kids toy is often used to show how a sound wave moves?

• SlinkyReturn to board

Too Much Noise! 200

• A measure of how loud or soft a sound is. Loud sounds have a lot of energy or …..

• VolumeReturn to board

Too Much Noise! 300

• The height of a sound wave is its ….

• Amplitude Return to board

Too Much Noise! 400

• Volume is measured in …..

• Decibels (dB)

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Too Much Noise! 500

• A machine that turns sound waves into pictures.

• oscilloscope

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Sound Energy300

• Name the 3 substances or mediums that sound can move through…

• Solid, Liquid or GasReturn to board

Sound Energy 400

• The pushed-together part of a wave is called a ….

• Compression

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Sound Energy 500

• Most wave energy travels in up-and-down waves, not like sound waves. These waves like radio, TV, microwaves, and UV waves are called….• Transverse waves Return to board

Sound Energy 100

• Sound energy is caused by back-and-forth shaking movements called….

• VibrationsReturn to board

Sound Energy 200

• Space with nothing in it is known as …… (hint: sound cannot travel through this)

• VacuumReturn to board