Waves Flashcards
Waves transfer…
Energy from one place to another but don’t transfer any matter
How do waves travel from one place to another
They vibrate or oscillate
What is the very top of a wave called
Crest
Distance (for waves)
How far the wave has travelled from its starting point
Displacement (for waves)
How far from the equilibrium point the wave has oscillated
Wavelength
Distance of one entire oscillation
How to calculate frequency
F=1/T
What is frequency
Number of complete oscillations per second
Calculate time
T=1/f
Time period ?
Time it takes for a complete oscillation
Trough?
Very bottom of wave
How to calculate wave speed (v)
V=fm
M(wavelengths) usually measured in lambada symbols
Transverse
Oscillation are perpendicular to the direction of energy transfer
Examples of transverse waves
Electromagnets
Waves of strings (guitar)
Light
Radio
Ripples/waves
Examples of longitudinal waves
Sound
Seismic p waves
Longitudinal waves?
Oscillation that are parallel to the direction of energy transfer
Waves can transfer energy through..
Solids
Liquids
Gases
Empty spaces (vacuums)
How often something happens =
Frequency
Frequency measurement
Hertz
Frequency symbol
F
When something happens repeatedly the event is…
Periodic
Wavelength?
The distance between a point on a wave and the same point on the next wave
Wavelength symbol
λ
Lambda
Wavelength measurements
Metres
Amplitude?
Distance from the max disturbance to the undisturbed position
Amplitude?
Distance from the max disturbance to the undisturbed position
