force

vibrations

instruments

shine a light in Morse code to represent letters

shout at her

make a loud bang

run over to her

Air

Empty space

Metal

Water

amplitude

compression

speed of sound

pitch

a branch moving back and forth

a car speeding up and down hills

a baseball hit by a bat

a marble dropped in a bowl of water

an object called a hammer

the size of a player's fingers

the length of its strings

how hard it is struck or plucked

The sound spreads out.

Your voice gets louder.

You are screaming.

The sound energy is directed in one direction.

it would make a low pitch sound

it would make a high pitch sound

it produces a slow vibrations

it produces low frequency

how high or low a sound is

the loudness or softness of a sound

the number of vibrations per second

vibrations

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

how loud a sound is

the back and forth movement of matter

how high or low a sound is

the loudness or softness of a sound

the back and forth movement of matter

how loud a sound is

how high or low a sound is

the number of vibrations per second

sound waves bouncing off large, hard surfaces

sound waves bouncing off carpet

sound waves bouncing off tables and chairs

you repeating yourself

True

False

solids, liquids, then gases

gases, liquids, then solids

solids, gases, then liquieds

liquids, solids, then gases

speed

frequency

amplitude

wavelength

amplitude and frequency

electromagnetic and mechanical

longitudinal and transverse

sound and light

medium

source

space

vacuum

The sound waves travel through the desk, but not the air

The sound waves travel slower through the air than the desk.

The sound waves travel faster through the air than the desk

There is no explanation for the change in sound.

Transparency of the medium

Material of the medium

length of the medium

color of the medium

The wall supports your ear better

you are paying more attention

The wall transmits sound better than air

sound is reflected by the walls