science chapter 4 revision light and sound Flashcards
1
Q
compression
A
the region in wich particles are forced close together
2
Q
refracton
A
compression but backwards so they are pushed apart the particles that is
3
Q
amplitude
A
the distance a particle of air moves is amplitude.
4
Q
what do sound waves travle as
A
longitudinal waves
5
Q
what are longitudinal waves
A
slinky being pushed together close together
6
Q
wave lenghth
A
the distance beetween the 2 crests
7
Q
crest and thorugh
A
top of the wavelngth is crest bottom is through
8
Q
frequancy
A
number off waves that pass a point each second is frequancy.
9
Q
hertz hz
A
the unit of herz is frequancy
10
Q
can sound travel at diffrent speeds
A
yes affected by clocness of particles.
