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# THIS PowerPoint PPT Presentation

THIS. IS. JEEPARTY. Your. With. Host. Ms. Hubbell. Pump Up the Volume. Wave Properties. Wave Behavior. Formulas & Graphs. Harmonics. Potpourri. 100. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400.

THIS

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IS

JEEPARTY

Your

## With

Host...

Ms. Hubbell

Pump Up the Volume

Wave Properties

Wave Behavior

Formulas & Graphs

Harmonics

Potpourri

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The property of a sound wave determines the perceived pitch.

A 100

What is frequency?

A 100

The type of a mechanical wave since a sound wave is propagated by the compression and rarefaction of air.

A 200

What is longitudinal?

A 200

This solely determines the speed of sound.

A 300

What is the medium?

A 300

The property of air which primarily determines the speed of sound.

A 400

What is temperature?

A 400

The property of the wave that doubles if the frequency is halved in a given medium.

A 500

What is wavelength?

A 500

Another term for the first harmonic.

B 100

What is the fundamental frequency?

B 100

On a vibrating string, these points experience no displacement.

B 200

What are nodes?

B 200

This occurs when an object vibrates at its natural frequency.

B 300

What is resonance?

B 300

The frequency of the third harmonic is this many times greater than that of the first harmonic.

B 400

What is three?

B 400

The equation for the harmonic series of a pipe open at both ends.

B 500

v

2L

What is fn = n

B 500

This principle explains why the pitch produced by a moving motorcycle changes as the motorcycle passes an observer.

C 100

What is the Doppler Effect?

C 100

This behavior of a sound wave is responsible for creating an echo.

C 200

What is reflection?

C 200

This behavior of a sound wave allows sound to bend around small obstacles.

C 300

What is diffraction?

C 300

DAILY DOUBLE

DAILY DOUBLE

Place A Wager

C 400

The observable phenomenon that occurs when the wave fronts generated by a rocket precisely align.

C 400

What is a sonic boom?

C 400

The number of beats heard per second when a 400 Hz and a 403 Hz tone interfere.

C 500

What is 3?

C 500

The reciprocal of period.

D 100

What is frequency?

D 100

The point on a graph of a wave that specifies the maximum positive displacement.

D 200

What is the crest?

D 200

The equation that relates wave speed to frequency and wavelength.

D 300

What is v = f λ?

D 300

The units of the horizontal axis of a graph that specifies the period of a wave.

D 400

What is seconds?

D 400

The frequency of a sound wave with wavelength 50 mm and a speed of sound of 343 m/s.

D 500

What is 6860 Hz?

D 500

This property of a sound wave determines how loud a sound is perceived.

E 100

What is amplitude?

E 100

Describes the ratio of two intensities of sound.

E 200

What is a decibel?

E 200

If the decibel level of a sound increases by 10 dB, this property increases by a factor of 10.

E 300

What is intensity?

E 300

The threshold of hearing for humans is this number of decibels.

E 400

What is 0 dB?

E 400

A yodeler is yodeling in a valley. If the yodel takes 0.25 s to come back to him from one side and 0.5 seconds from the other, how wide is valley? (assume that the speed of sound = 343 m/s).

E 500

What is 128.6 m?

E 500

In general, sound travels fastest through this phase of matter.

F 100

What is a solid?

F 100

This part of a clarinet is responsible for producing the sound due to its vibration.

F 200

What is the reed?

F 200

This part of a guitar is responsible both for the source of the sound and the medium that carries the sound wave.

F 300

What is the string?

F 300

A sound whose frequency is higher than can be heard by humans. Also a medical technology used to observe a fetus.

F 400

What is an ultrasound?

F 400

___________ is transferred by waves and is determined by the _______________ of the wave.

F 500

What is energy, amplitude?

F 500

The Final Jeeparty Category is:

Wave Graphs

Click on screen to begin

The frequency of the wave displayed on this graph:

seconds

Click on screen to continue

What is 0.25 Hz?

Click on screen to continue

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