Waves, sound, forces Flashcards
(13 cards)
1
Q
amplitude
A
height of wave measure from the middle to top or bottom- shows how loud a wave is.
2
Q
frequency
A
the number of waves on an oscilloscope per second.
3
Q
constructive interference
A
waves join and get bigger
4
Q
destructive interference
A
waves cancel each other out and they die
5
Q
rarefactions
A
where coils are further apart
6
Q
compression
A
coils are close together
7
Q
ultrasound
A
sound above 20,000Hz
8
Q
infrasound
A
sound below 20Hz
9
Q
sound needs a … to travel through
A
medium
10
Q
sound cannot travel through a vacuum because there are no air molecules to …..
A
vibrate
11
Q
moment
A
force X distance from pivot
12
Q
pressure
A
force X area
13
Q
A
