Sound Waves
Sound waves are caused by...
vibrations
A large barking dog has a _______pitch.
low
Name one way we use sound to communicate.
phone/radio/alarms, etc...
How many keys are on a piano?
88
What vibrates in your throat when you hum or speak?
Vocal cords
The top of a wave is called the...
crest
What is the difference between volume and pitch?
Pitch is how high or low
Volume is how loud or soft(quiet )
Name one way sound is used in exploration
exploring oceans
OR
exploring outer space
Why do drums make different sounds?
Their size or shape make them sound different.
Is there sound in outer space? Explain
No. There is no air in outer space so
sound cannot travel in outer space.
The bottom of a sound wave is called the...
trough
The amount of waves (how close they are together) is called ...
frequency
Name 2 ways sound can be used by doctors
ultrasound
listen to heart with stethoscope
look at heart images
blast kidney stones
The shorter the string on an instrument, the _______________the pitch.
higher
What does sound travel fastest through...a solid, liquid or gas?
SOLID
What 2 things does a sound wave measure?
Volume and pitch
High pitch or low pitch?
A) whistle blowing
B) dad voice
C) tuba playing
D) baby crying
A) high
B) low
C) low
D) high
Explain how sonar (sound waves) are used to find a sunken ship.
Sound waves are sent under water.
The waves bounce off the object and
bounce back up to the surface at different rates.
The computer does the rest!
Why is a piano called a stringed instrument?
AND how does a piano work(when I hit a key...)
There are strings INSIDE the piano.
When I hit a key, a little hammer hits the string
inside the piano, making the sound.
Name two songs Mrs. Petrasek can play on her guitar!
Twinkle Twinkle
Happy Birthday
Jet Plane
Jingle Bells
ABC song
Volume is measured in ____________________
decibels
In the cup experiment, what type of cup would have the highest pitch? the Lowest?
The fullest cup=lowest pitch
The emptier cup =higher pitch
Why would scientists want to use sound waves in the ocean? Give 2 reasons!!!
To find new objects
To discover sunken treasures or ships
How many strings are on a guitar???
Is the top string the high or low "E"?
6
Low E
Name the 3 smallest bones in your ear!
hammer, anvil stirrup