Sound Waves
Sound Waves travel as ______ waves.
What is Longitudinal?
In what type of media will sound travel the fastest?
What is a Solid?
The amount of energy a sound wave carries per second through a unit of area is its what?
What is intensity?
High frequency sounds have __________ pitch.
What is high?
A cave is 100 m deep. The distance an echo would have to travel to come back to you is:
Around 200 m
Sound is made when a source of energy forces matter to ___________.
What is vibrate?
The elasticity of a substance describes how fast or slow its particle bounces back and forth as _________ move through the object
What is vibrations?
The ________ of a wave increases with increased energy.
What is amplitude?
1. As sound waves move, air particles push into other air particles in regions called ________ and spread out in regions called ________.
What is compressions, rarefactions
Sound in a theater travels around 400 m/s. If it takes 0.7 seconds for an echo to come back to you, how far away is the wall?
140 m away
A back-and-forth motion causing particles to move closer together generates a ____________.
What is a compression?
Which physical property of a medium is defined by how close the particles of the substance are to each other?
What is density?
Frequency of waves is measured in what?
What is hertz?
Sound is different from light because it must have _____________.
What is a medium to travel through
351.4 m/s
A rarefaction is generated when particles move _______.
What is apart?
Which temperature causes sound to travel more slowly?
What is cold?
There are two waves of 430 Hz and 434 Hz. When they are played together, how many wave oscillations with their interference produce every second?
Which of the following objects would produce a high-pitched sound?
What is An object vibrating very quickly
If sound travels at 340 m/s in a room, what will be the wavelength of a 1020 Hz sound wave?
0.33 m
Sound waves cannot travel through ___________.
What is outer space?
Which of these is not a property of a sound wave?
intensity, elasticity, loudness, pitch
What is elasticity?
Loudness of waves is measured in what?
What is Decibels?
. Which of the following objects would produce a low-pitched sound?
An object vibrating very slowly
Name your favorite class
Physics