Unit 10

How loud a sound is determined by what part of the wave?

• wavelength

• speed

• amplitude

• frequency

Mechanical waves must travel through a medium. which of the following is a mechanical wave?

• microwave

• sound

• light

• radio

Which example will have the longest wavelength?

• a singer singing at a frequency of 1200 Hz

• a man speaking at a frequency of 540 Hz

• a bass guitar playing a note at 150 Hz

• a tiger growling at a frequency of 85 Hz

the petals on a rose appear red because?

• they emit red light

• they absorb red light

• they reflect red light

• they transmit red light

a student is using a metal slinky to model a wave. which type of wave is being modeled?

• transverese wave

• longitudinal wave

• standing wave

• diffraction wave

What is the highest point on the wave called?

• trough

• wave

• frequency

• amplitude

What letter is the amplitude?

• A

• B

• C

• D

What letter is the trough of the wave?

• A

• B

• C

• D

What type of wave has a wavelength of 1.00 X 10^-8?

• radio

• x-ray

• ultraviolet

• gamma ray

If a firetruck is moving toward the person on the right, and away from the person on the left, what is the difference in the sound produced by the firetruck?

• person to the right will hear a louder noise than the left

• person to the left will hear a louder noise than the right

• the person to the left will not hear a noise and the person on the right will

• neither person observes a difference