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