waves capable of transferring energy through a vacuum

waves that can only travel through a medium

mstter in the medium move back and forth at right angles to the direction that the wave is traveling

~particular motion is perpendicular to wave motion

Ex: string instruments

(compression wave)matter in the medium moves back and forth in the same direction

matter through which a wave travels through; can be solid,liquid, or gas

Ex: sound waves/ water waves

one example of a electromagnetic

aka(peak) highest points of a transverse wave

lowest point of a transverse wave

where particles are pushed together in a logitudinal wave

where particles are spread apart in a longitudinal wave

the amount of energy carried by a wave

the amount of compression in the wave

the number of waves that pass a given point in one second

what type of relationship does frequency and period share

travel through particles therefore travel faster through solids, than liquids then gases due to the closeness of particles

~also travel faster through warmer mediums because particles collide more

do not need medium therefore travels faster through vacuum and slowest through solids(like light)

what is velocity measured in

what is wavelength measured in

what is frequency measured in

when a wave strikes a object and bounces off of it

ex: echoes are reflected sound waves

angle of incidence is always equal to the angle of reflection

the bending of waves caused by a change in its speed as it moves from one medium through another

the greater the change in speed, the more the wave bends

how does a prism work

when a object causes a wave to change direction and bend around it

the amount of diffraction depends on :

why do sound waves tend to diffract much better than light waves

when a wave strikes a object and goes into (it is absorbed)

in _____ energy from the wave gets converted to thermal energy

Ex: dark clouds are better at absorbing light waves than light, thus it is better to wear dark colors in the winter to stay warm

when two or more waves combine to form a new wave

when two or more waves add together. like parts of waves must line up. results in an increase in amplitude of the wave

when two or more waves subtract from one another when they overlap. opposite parts of waves must line up.

special type of wave pattern that forms when waves equal in wavelength and amplitude but traveling in opposite directions, continously interfere with each other

occurs when the medium vibrates at a specific frequency . it also creates a wave that doesnt more or have a change in amplitude

process where an object is made to vibrate at its natural frequency by absorbing the energy of another object that is vibrating at the same frequency

Ex: tuning fork

if light strikes a body of water at a angle of 30 degrees, what will the angle of reflection be?

electrical and magnetic waves released by a vibrating electric charge capable od transferring energy through a vacuum

transfer of energy between electric and magnetic fields which can exist with or without matter

a disturbance that can carry energy

~ electromagnetic waves can behave as waves and as particles called protons

the entire range of frequencies of electromagnetic radiation

~ electromagnetic waves give off energy in the form of electromagnetic radiation

~ there is a brood range in the different types of EM radiation

piece of matter

massless bundle of energy

on the left side of the electromagnetic spectrum the wave has....

on the right side of the spectrum the waves have...

the colors on the spectrum spell

emitted by radio stations, MRI's, Radar, wi-fi, tv, and cell phone

~ longest wavelength with lowest frequency

used for cooking,dopple radar, and gps

used in night vision goggles, remote control, and infrared photography

-the only electromagnetic wave we can see, given off by the sun and light bulbs

-different colors of light have different wavelengths

-ROYGBIV: red is the longest and violet is the shortest

given off by the sun; used in light bulbs, to kill bacteria, and by the human body to make vitamin D

- used to take pictures of bones to check for breaks and fractures, also used in CAT scans

-small enough to penetrate skill cells

-overexposure can cause cancer

used to kill cancer cells, sterilize medical equipment and in radioactive tracers

-smallest wavelength with highest frequency

change in frequency(and thus pitch) due to a moving wave source