Show:
Instruments
Pitch
Investigations and Graphing
Sound Travel
Vocab/Misc.
100
When you blow over the top of a bottle, more water means
higher pitch
100
What controls pitch?
Frequency
100
What is an independent variable?
What the scientist changes
100
Does sound travel faster through hot or cold air?
Hot air
100
Draw a sound wave on the board and label it
see board
200
If you tighten the strings on your violin, what will happen to the pitch?
It gets higher.
200
When frequency increases, what else increases?
Pitch and compressions on the wave
200
http://kids.nceas.ucsb.edu/DataandScience/bargraphs.html Which type of trash is there the most of on the beach?
Cigarettes
200
In what state of matter does sound travel the fastest? Why?
Solids - the molecules are tightly packed
200
As amplitude increases, what else increases?
Volume
300
How do you change the amplitude of a drum?
Hit it harder.
300
Looser, thicker strings on a guitar have what kind of pitch?
Low pitch.
300
Ms. Bernstein wants to know if the thinner or thicker rubber band will go around a soda bottle more times. What should stay the same in this experiment?
The bottle should stay the same
300
Why does sound not travel through space?
There is not enough matter for it to travel through
300
How do animals use echolocation?
They use sound waves to find food
400
What changes the pitch of a wind instrument?
The length of the air column
400
Does a short or long strong have a low pitch?
Long
400
Ms. Bernstein wants to know if the thinner or thicker rubber band will go around a soda bottle more times. She wraps each one around the bottle as many times as it can. What is the independent variable? What is the dependent variable?
IV: Thin or thick rubber band DV: How many times it goes around
400
Sound is a type of ________ that travels in ___________ or __________ waves.
Energy, compression, longitudinal
400
What happens if you pinch a string while it's making sound?
You stop the vibrations so the sound stops