Question 1:

A wave is a disturbance in a medium which carries _______, not ________.

100%	1.	energy; matter
0%	2.	matter; energy
0%	3.	matter; amplitude
0%	4.	none of the above

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Question 2:

From the picture, determine the wavelength of the wave in meters.

0%	1.	2 m
100%	2.	4 m
0%	3.	8 m
0%	4.	1 m

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Question 3:

From the picture, find the amplitude of the wave

0%	1.	2 m
0%	2.	1 m
0%	3.	3 m
100%	4.	4 m

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Question 4:

The units for frequency are

100%	1.	Hertz
0%	2.	Watts
0 %	3.	Meters
0%	4.	Joules

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Question 5:

In a transverse wave, the medium moves back and forth

0%	1.	in the same direction as the wave is traveling.
0%	2.	in a circular motion.
100%	3.	in a direction perpendicular to the direction of the wave.
0%	4.	none of the above.

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Question 6:

The velocity of sound in air at room temperature is 340 m/s. What is the wavelength of an A above middle C (having a frequency of 440 Hz)?

0%	1.	1.29 m
100%	2.	0.77 m
0%	3.	149,000 m
0%	4.	1.0 m

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Question 7:

Ultra-sound used for imaging babies in the womb has frequencies up to 7 MHz or 7 million Hz. The medium for the waves is the water surrounding the baby, for which v = 1500 m/s. What is the wavelength of the ultrasound?

100%	1.	2.14 x 10^-4 m
0%	2.	4,700 m
0%	3.	0.017 m
0%	4.	11.0 m

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Question 8:

A source of Electromagnetic waves must have vibrating ______________.

0%	1.	masses
0%	2.	strings
100%	3.	charges
0%	4.	none of the above

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Question 9:

A device that receives wave energy only at specific frequencies is called ___________.

100%	1.	a resonator
0%	2.	an ear drum
0%	3.	a diaprhagm
0%	4.	none of the above.

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Question 10:

The blackbody radiation energy-frequency spectrum is best compared to what kind of a sound spectrum?

100%	1.	noise
0%	2.	musical tone
0%	3.	pure tone
0%	4.	laser

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