Sound

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

Sound travels fastest through...

• Solid

• Liquid

• Gas

• Space

What is vibration?

• the rate at which sound waves occur

• movement back and forth

• how high or low a sound is

What happens to our hearing if we listen to loud noises all the time?

• We appreciate music better

• we get a ringing in our ears

• we start to experience hearing loss

Why can't we hear sound in space?

• can't take our helmet off to hear
• Space has no mass / no gas/ solids/ liquids
• because it's dark
• Don't know, I've never been to space

Sound is caused by....

• molecules
• vibrations
• people
• space

Tags

NGSS.MS-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

______________ is the amount of energy in a sound wave.

• Amplitude
• Echo
• Volume
• Vibration

Tags

NGSS.MS-PS4-1

Your ear changes the vibration of sound waves into signals. The signals are then interpreted by your brain.

• True
• False

What does the ear drum do as it receives sound?

• it starts to vibrate

• it does nothing

• it bursts