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What is the scientific word for how loud of quiet a sound is?
Volume
Name the three parts of a sound system that make a singer's voice louder
Microphone, amplifier and loudspeaker
True or false A microphone makes sound quieter
False
Why does a cardboard tube make a clock sound louder to your ear?
It directs the sound vibrations straight into your ear.
What happens to sound vibrations as they travel further through the air?
They sound spread out and get quieter.
What is the name for unwanted , annoying , or harmful loud sounds?
Traffic, construction, loud music, horns
What do construction workers wear over their ears to protect them
Ear defenders
How do carpets and curtains inside a house help with sound?
They muffle(absorb) sound and make things quieter.
What is fitted to a car's engine to make it quieter?
A silencer
What word means to make a sound quieter?
Muffle
What is the scientific word for how high or low a sound is ?
Pitch
Which has a higher pitch; a mouse's squeak or a lion's roar?
A mouse's squeak
On a guitar , do thin strings or thick strings have a higher pitch ?
Thin strings
If you tighten a guitar string , will the pitch get higher or lower?
higher
If you loosen a guitar string, will the pitch get higher or lower?
lower
When you press a guitar string down, you make the vibrating part shorter. What happens to the pitch??
It gets higher
