All About Sound
Sound Waves
Vocabulary
Pitch & Volume
How you hear sound
100

Sound if a form of _____________

Energy

100
What is the top of a wave called? What is the bottom of a wave called?
top-peak (or crest) bottom-trough
100
A form of energy that travels in waves and is produced and transmitted by vibrating matter is ___________.
sound
100

The highness or lowness of a sound is called ______

Pitch

100

Which part of your ear catches sound waves?

The outer ear

200

Draw a diagram to show how sound travels

The diagram should show a sound wave

200

Sound travels fastest through a _______

Solid
200

_____________ determines how loud or soft a sound is.

Volume

200

If object A is vibrating faster than object B, then object A will have a ______________ pitch. (higher or lower)

Higher
200

Flap of skin that inside the ear that vibrates when sound hits it is called the __________

Eardrum

300
_____________ is created by vibrations.
Sound
300

Sound waves travel slowest through a _______

gas

300
What is wavelength?
The distance between a point on one wave to the same point on the next wave.
300

If the amplitude is high, the volume will be ________

high

300

After hitting the eardrum, the sound vibrations move to the ________ ___.

Middle ear

400

True or False. If there was a loud explosion in space we would not hear it.

True. There is no matter in space, so the sound waves would not have anything to bounce off of.

400
Draw a sound wave that has low pitch and high amplitude.
The waves should be very spread out and tall.
400

______________ is the number of crests or troughs that pass in a certain amount of time. (the speed)

Frequency

400

What is a tool used to make sounds louder?

Amplifier

400

This part of the ear sends a message to the brain that the brain understands as sound

Inner ear

500

What properties lead to sound discrimination?

material, size, shape, weight, etc.

500
Draw a sound wave with high frequency and high volume.
There should be a lot of tall waves close together.
500

Being able to tell different sounds apart is called what?

Sound Discrimination

500

If you are plucking a string and hearing its vibrations, what will happen to the pitch as the string gets tighter?

The pitch gets higher

500

When a sound waves hits something that is solid, like a wall, most of the waves bounce off. This causes an _____.

Echo

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