Sound and the Ear

Sound is caused by? 

• force
• vibrations
• instruments

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

A longer string makes a _______ pitch than a short string.

• louder
• softer
• higher
• lower

What is volume?

• how high or low a sound is
• the loudness or softness of a sound
• the number of vibrations per second
• vibrations

Would this have a loud sound or soft sound?
Sia screaming into her microphone while singing “Chandeliers”

• loud sound
• soft sound

What is a way to make pitch higher?

• Use a tighter string (more tension)
• Use more force
• Get farther from it
• Wear pink

What medium (solid, liquid, gas) does sound travel fastest through?

• solid
• liquid
• gas

This is what you get when soundwaves are reflected, or bounce back, off of a hard surface.

• Amplitude
• Pitch
• Volume
• Echo

Why is the school library covered with carpet?

• So everyone can make a lot of noise
• to help absorb sounds to keep it quiet
• because it looks good
• to help absorb sounds so it can stay noisy

You will see a flash of lightening before you hear the thunder that goes with it because-

• the eye is quicker than the ear
• thunder occurs much later than lightening
• sound travels faster through the  atmosphere than light
• light travels faster through the atmosphere than sound