Sound A
Sound needs _____ to travel
Vibrations
How loud or soft a sound is.
Number of waves in each second.
Frequency
Something that has weight and takes up space is ____
Matter
When we speak these vibrate.
Vocal cords
How sounds travel from one location to another.
What are sound waves? OR What are vibrations through matter?
A larger drum has a _________ pitch.
Lower
True or False: Particles do not travel with a sound wave
True
Sounds with many vibrations per second have ___________ frequency.
High
True or False: a quiet sound has big amplitude
False
Sound travels through the outer ear, the middle ear and finally through the _____________ before the brain interprets the sound.
The distance between two waves
Wavelength
Can sounds be heard on the moon?
No
The smaller the frequency, the ____ pitch
Lower
The height of a wave
Amplitude
When we talk, sound travels through this medium before entering the outer ear.
What is the air?
The bigger the frequency, the _____ pitch
Higher
True or False: a long wavelength means low pitch.
True
Bigger amplitude makes the sound _____
Louder
All matter has small _______
Particles
The three types of matter
What are solids, liquids and gases?
Name a type of energy that travels in waves.
Sound or Light
Bigger Frequency makes the sound _______
Higher pitch