What units are used to measure volume?
Decibels
Describe this sound
Soft and high pitched
What is sound?
Sound is energy caused by vibration.
What does the pitch tell us?
The highness or lowness of a sound
What is amplitude?
The size of a vibration / The size of a soundwave
Describe this sound
Loud and low pitched
What is vibration?
A fast movement back and forth.
How do we measure pitch?
Frequency / Hertz / Wavelength
Describe this sound
Loud and high pitched
Describe this sound
Loud and low pitched
True or False: Sound travels slowly...
False
True or False: Volume tells us if a sound is high or low...
False
Describe this sound
Soft and low pitched
What is this?
A soundwave.
What is the unit used to measure frequency?
Hertz
What animals can hear sounds higher than humans?
Dolphins / Dogs / Bats
True or False: A big vibration makes a big amplitude
True
Describe this sound
Soft and low pitched
Describe this sound
Loud and high pitched
True or False: Pitch is measured using decibels...
False
What volume is dangerous for our hearing?
>85dB