1
Q
what are the five energy stores?
A
chemical, thermal, gravitational potential, elastic potential and kinetic
2
Q
name the line drawn at 90º to the surface of a material from where angles are measured
A
the normal
3
Q
what are the two types of wave?
A
longitudinal and transverse
4
Q
longitudinal waves are. . . to the direction of energy
A
parallel
5
Q
transverse waves are. . . to the direction of energy
A
perpendicular
6
Q
name an example of a transverse wave
A
light, water
7
Q
name an example of a longitudinal wave
A
sound
8
Q
what do waves transfer?
A
energy
9
Q
describe how sound is produced in a guitar?
A
vibrations in the guitar cause the air to vibrate, causing a sound wave
