Sounds

What is Pitch?

• How loud or soft a sound is

• muscle that holds vocal cords

• movement back and forth

• how high or low a sound is

How many decibels of Soft Sounds?

• 85 - 125 dB

• 126 - 180 dB

• 0 - 45 dB

• 46 - 85 dB

Sounds travel slowest through...

• Space

• Solids/Metals

• Gas

• Liquids

Why we can't hear sound in space?

• Because we can't take our helmet off to hear

• Because there's no lights

• Space has no mass / no gas / no liquids

• I don't know

How can we protect our ears from hearing loss?

• We have to wear ear plugs

• Put our fingers in our ears

• Try bot to listen to loud things

• All of the above

Sounds can measured in ....

• Decimals

• Frequency

• Hertz

• Decibels

Sounds can measured with .....

• Sound-Level Meter

• Decibels

• Sound-Decibels Meter

• Decibels Meter

Why is the cinema covered with carpet?

• Because it looks good

• To help absorb the air so it can stay cold

• To help absorb sounds to keep it quiet

• It can covered the air from inside of the cinema

How the sounds are made?

• when things or air vibrate

• when things are dropped

• when things are moved

• when the things are flicked

We can make things vibrate and produce sounds in different ways. these include:

• Plucking, Hitting

• A and D are the correct answer

• None of all above

• Blowing, Shaking