Sound Energy

Sound Energy #1

Wavelength - One of the main properties of sound

Pitch- Another name for frequency

• Sound waves- Audible, infrasonic and ultrasonic.

• Amplitude - The height of the sound wave determines its loudness.

• Frequency- The number of cycles of vibrations that occur in a given time period.

Sound Key Words

Multiple Choice

Imagine you're in a large, empty cave and you shout out loud. Why do you hear your voice echoing back at you?

• Your voice is actually sound waves that bounce off the cave's large, hard surfaces

• Your voice is actually sound waves that bounce off the cave's carpet

• Your voice is actually sound waves that bounce off the cave's trees and bushes

• You're just repeating yourself without realizing it

Multiple Choice

Imagine you're a superhero with super hearing powers! Can you tell what determines whether a sound is high or low?

• amplitude

• compression

• speed of sound

• pitch

Multiple Choice

Can you guess what 'volume' refers to in the world of sound?

• Is it about how high or low a sound is?

• Could it be the loudness or softness of a sound?

• Maybe it's the number of vibrations per second?

• Or is it just vibrations?

Multiple Choice

Imagine you're a super-fast sound wave! Through which of these materials would you zoom FASTEST?

• Air

• Empty space

• Metal

• Water

Multiple Choice

1.  Imagine you're in a world without matter, do you think sound waves could still travel around?

• Absolutely, they can!

• No way, they can't!

Multiple Choice

Can you guess what 'frequency' refers to in the world of sound?

• Is it the number of vibrations per second?

• Or, could it be how high or low a sound is?

• Maybe it's the loudness or softness of a sound?

• Or, is it the back and forth movement of matter?

Multiple Choice

Ever wondered why your voice seems to travel further when you cup your hands around your mouth while shouting? Let's find out!

• Does the sound just spread out more?

• Does your voice magically get louder?

• Are you just screaming louder?

• Or, is the sound energy being directed in one specific direction?

Multiple Choice

Ready for a fun fact? What causes the sounds that we hear every day?

• Is it friction?

• Could it be vibrations?

• Or is it instruments?

Multiple Choice

1.  Did you know? Sound can actually travel through gas! Is this statement true or false?

• True

• False

Multiple Choice

1.  Did you know that sound can actually travel through objects? Is that true or false?

• True

• False

Multiple Choice

1.  Hey, did you know? Sound can't zip through liquids like it does in air! Is that true or false?

• True

• False

Multiple Choice

Let's play a fun game! Can you tell me what 'pitch' is in the world of sound?

• Is it the back and forth movement of matter?

• Could it be how loud a sound is?

• Or is it how high or low a sound is?

• Maybe it's the number of vibrations per second?

Multiple Choice

Imagine you're a rockstar, about to perform on stage. You notice your guitar sounds a bit off. What would happen if you tighten the strings on your guitar?

• Your guitar would start to make a low pitch sound, like a bass guitar

• Your guitar would start to make a high pitch sound, like a lead guitar

• Your guitar strings would start to produce slow vibrations

• Your guitar strings would start to produce low frequency sounds

Multiple Choice

Imagine you're a rockstar, jamming on your guitar! What would affect the pitch of your stringed instrument?

• Using a funky object called a hammer

• The size of your rockstar fingers

• The length of your guitar strings

• How hard you're rocking out on the strings

Multiple Choice

Let's play a fun fact game! Is it true or false that sound can travel through solids?

• True

• False

Multiple Choice

Can you guess why the school library and the music class is all decked up with a carpet?

• So that everyone can have a noisy party

• To soak up sounds and maintain a peaceful environment

• Just because it adds to the aesthetics

• To absorb sounds and make it even noisier

Multiple Choice

Can you figure out which of these scenarios best illustrates how a sound wave travels?

• A branch swaying back and forth in the wind

• A race car zooming up and down hilly tracks

• A baseball being smacked by a bat

• A marble causing ripples when dropped in a bowl of water