waves Flashcards
what do waves transfer
energy without matter
what are transverse waves
they are waves that have high peaks and vibrate at right angle#
eg: light
what are longitudinal waves
they are waves that are formed by compression and vibrate towards the same direction
eg: sound
what is amplitude
the distance from the equilibrium of the wave
what is the wave front
it is the joining points of a wave
what is a frequency
it is the number of waves
what is a wave length
the distance from one wave to another
what is a time period
it is the time taken to form one wave
what is the speed of a wave equal to
the frequency x wave length
what is the doppler effect
it is the increase or decrease of the frequency of waves as they move closer together
when do waves reflect
when travelling from a medium of low density to a medium of a higher density
when do waves refract
when the waves speed causes it change medium
what happens when a wave goes from a low density to a higher
the speed decreases
what happens when a wave goes from a high density to a low
the speed increases
what is the electromagnetic spectrum
radio waves, microwaves, infrared waves, visible waves, ultra violet, X-rays and gamma rays
