Sound Energy and Speed

Sound Energy

Multiple Choice

Sound waves carry .............. from one place to another

• crests

• energy

• fluid

Multiple Choice

................... is how loud or soft a sound is.

• Speed

• Wave

• Volume

Multiple Choice

Loudness of sound is measured in ...............

• decibels

• feet

• degree

Multiple Choice

To ..................... is to move back and forth quickly.

• pitch

• crest

• vibrate

Multiple Choice

As sound waves move away from their source the sound become ....................

• louder

• softer

• faster

Multiple Choice

Sound waves cannot travel through ...................

• solid

• liquid

• space

Multiple Choice

.............. is measure of how high or low a sound is.

• Pitch

• Temperature

• Length

Multiple Choice

Sound is a kind of energy that travels in ..............

• waves

• current

• group

Multiple Choice

All sounds are made by ............. objects.

• warm

• cold

• vibrating

Multiple Choice

Your .............. vibrate and produce sound when you speak.

• arms

• vocal cords

• lungs

What is sound?

• Sound is a form of energy.

• Sound travels in waves.

Sound occurs when..

• there is a back-and-forth movement called VIBRATION.

• You can see drums vibrate when you strike them or the strings on a guitar vibrate when you pluck them.

When strings are plucked on a guitar, the strings VIBRATE to create sound energy!

BIG vibrations...

• make LOUD sounds!

Small vibrations...

• make quiet sounds

S-L-O-W vibrations make...

• lower pitch because its a slower frequency.

FAST vibrations make...

• higher pitch because its a faster frequency.

What is pitch?

• Pitch is how HIGH or how LOW a sound is.

• Think of an opera singer hitting a high note in her song.

Sound must have MATTER to travel through.

• Think of the sound moving through the guitar string, or think of the rumble in your chest from a marching band during a parade.

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