2 relationships for waves
1) speed and frequency = directly proportional
(as speed goes up, frequency goes up)
2) wavelength and frequency = inversely proportional
(as wavelength gets longer, frequency goes down)
for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough
when waves combine to a larger amplitude
highest point (peak) of a wave
when waves cancel each other out
the spreading out of waves through an opening or around the edges of an obstacle
light will bend around a lampshade; sounds can be heard even if you are hiding behind something
electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium)
Examples of EM Waves
Radio, infrared (IR), light
Examples of mechanical waves
Sound, ocean waves, earthquakes
the number of waves passing a fixed point in a certain amount of time; it is based partly on wavelength (longer wavelengths take a longer time to pass) and partly on the speed the wave travels
the meeting and combining of waves
waves that transfer energy through matter
any substance that a wave moves through
the bouncing back of a wave as it strikes a barrier
mirror (light waves), echo (sound waves), RADAR (radio waves)
the bending of a wave as it enters a new medium at an angle other than 90 degrees
a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
lowest point (valley) of a wave
a disturbance that transfers energy from one place to another
the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.