What is pitch?
Pitch is how high or how low a sound is.
Give an example of a loud sound.
Any loud sound.
Give an example of a soft sound.
Any soft sound.
A sound is louder when the vibrations are _____________.
Bigger.
The __________ the vibrations, the higher the pitch of the sound.
faster.
Give an example of a percussion instrument.
Drums, shakers, and rattles.
What causes sound?
Vibrations.
What do we use to measure sound?
A sound level meter.
Does sound travel best through a solid, a liquid, or a gas?
A solid.
How do you raise the pitch on a stringed instrument, such as a guitar?
By making the string thinner, shorter, or tighter.
What is the unit we use to measure sound?
A decibel (dB)
You hear an aeroplane passing overhead. What is the source of the sound?
The aeroplane.
Name two ways we can muffle sounds.
Ear defenders, silencers on cars, carpets, curtains
__________ vibrations cause soft sounds.
Small.