Waves

Cards (16)

definition of oscillation
word for vibration
what do waves do
transfer energy not matter
what are transverse waves
waves where the oscillations are perpendicular to the direction of energy transfer
2 examples of transverse waves
water, electromagnetic
What is a longitudinal wave
A wave where the oscillations are parallel to the direction of energy transfer
What do longitudinal waves need
a medium to travel through this makes them mechanical waves
example of a longitudinal wave
sound waves
what is frequency
number of waves per second
unit of frequency
hertz
whats amplitude
how loud or soft
what is the frequency equation
1/time period
what is the wave speed equation
frequency x wavelength
what is reflection
when waves are reflected their speed and wave length do not change
what is refraction
when waves change speed direction and wave speed. when waves cross a boundary between different mediums
equation for time period
1/frequency
what is the required practical for waves
ripple tank to measure frequency and wave length