Travelling Waves and Transfer of Energy (Leaving Cert Physics): Flashcards
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Travelling wave definition
Travelling wave definition
Disturbance carrying energy without transferring matter
What mechanical waves need to travel
What mechanical waves need to travel
A medium (solid, liquid, or gas)
Can mechanical waves travel in vacuum?
Can mechanical waves travel in vacuum?
No
Can electromagnetic waves travel in vacuum?
Can electromagnetic waves travel in vacuum?
Yes
Speed of EM waves in vacuum
Speed of EM waves in vacuum
m/s
What waves transfer
What waves transfer
Energy, not matter
Transverse wave particle motion
Transverse wave particle motion
Perpendicular to wave direction
Longitudinal wave particle motion
Longitudinal wave particle motion
Parallel to wave direction
Compression in longitudinal waves
Compression in longitudinal waves
Coils/particles squeezed together
Rarefaction in longitudinal waves
Rarefaction in longitudinal waves
Coils/particles stretched apart
Wavelength definition
Wavelength definition
Distance between two identical points on wave
Frequency definition
Frequency definition
Complete waves passing a point per second
Amplitude definition
Amplitude definition
Maximum displacement from rest position
Period definition
Period definition
Time for one complete wave to pass a point