The Electromagnetic Spectrum Answers

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f
frequency
t
the Doppler effect
t
the resonance effect
i
intensity
3

Dewayne, a pianist, wants to compare sound quality. Which scenario describes how he could do this?

A
He plays two different notes on two different pianos at a different volume.
B
He plays two different notes on the same piano at the same volume.
C
He plays the same note on the same piano at a different volume.
D
He plays the same note on two different pianos at the same volume.
5

Nico vibrates an object at different frequencies. At a certain frequency, the sound gets louder and then returns to the same volume when he moves to the next frequency.

A
The natural frequency of the object is changing.
B
The amplitude of the wave is doubling.
C
A standing wave is being generated.
D
Pitch is producing the louder sound.
6

What does resonance result in?

q
quieter sounds
f
frequency
a
amplitude
l
louder sounds
7

How is a less-intense wave different from a more-intense wave?

I
It has fewer decibels.
I
It has a higher pitch.
I
It has more volume.
I
It has more energy.
8

Which would describe a situation in which the Doppler effect is occurring?

A
Sheila notices an increase in volume as an object approaches her.
B
Brad hears an object increase in loudness as it is vibrated at its natural frequency.
C
Judy notices an increase in intensity as an object is vibrated at its natural frequency.
D
Damian hears a change in pitch as an object moves past him.
10

most likely

h
hertz
d
decibels
f
frequency
a
amplitude

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