Sound
Sound needs _____ to travel
Vibrations
False
The three types of matter
Solid, Liquid, Gas
Something that has mass and takes up space is ____
Matter
When we speak these vibrate.
Vocal cords
Sound travels slowest through ___________
Gases
How sounds travel from one location to another.
sound waves
Number of waves in each second.
Frequency
A drum has _________ pitch.
Low
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 fastest through _____________
Solids
The distance between two waves
Wavelength
Can sounds be heard on the moon?
No
Low frequency = ____ pitch
Lower
The height of a wave
Amplitude
When we talk, sound travels through this.
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
How do we measure a wavelength?
metres
Name a type of energy that is not sound
light, heat, elastic, etc.
high frequency = high ________
pitch