Waves Flashcards
WHAT IS THE COLOUR WITH THE LONGEST WAVELENGTH AND THE COLOUR WITH THE SHORTEST
Longest- red
Shortest- violet
WHAT ARE COMPRESSION WAVES
matter in a medium moves back and forth along the same direction that the wave travels. like slinkies
WHAT ARE TRANSVERSE WAVES
matter in a medium moves back and forth perpendicular to the direction the wave travels. like ropes
WHAT IS A WAVE
disturbance or movement that transfers energy through matter or space without causing permanent displacement
WHAT IS A CREST, TROUGH AND EQUILIBRIUM/NEUTRAL/REST
Crest- high point in a wave
Trough- low point in a wave
Equilibrium/neutral/rest- the level when there are no waves
WHAT IS WAVELENGTH
distance of one complete wave cycles (crest to crest or trough to trough) it is measured in metres
WHAT IS AMPLITUDE
height of a wave or depth of the trough measured from equilibrium
HIGH AMPLITUDE= MORE OR LESS ENERGY
more!
WHAT IS FREQUENCY
the number of repetitive cycles that occur in a given time- measured in Hertz (Hz)
SHORTER WAVELENGTH= HIGHER OR LOWER FREQUENCY
higher
WHAT ARE SOME USES OF RADIO WAVES
radio, tv
WHAT ARE SOME USES OF MICROWAVES
heat stuff i guess
WHAT ARE SOME USES FOR INFRARED WAVES
remote controls, night vision goggles
WHAT IS VISIBLE LIGHT
things that are visible with the human eye
WHAT ARE SOME USES FOR ULTRAVIOLET WAVES
tanning salon, kill bacteria
