2.4 nature of waves Flashcards
(24 cards)
What are Transverse Waves
Particles oscillate perpendicular to wave direction.
What are Longitudinal Waves
Particles oscillate parallel to wave direction.
What is Energy Transfer
Energy moves without transferring matter.
What is Polarisation
Limiting oscillation direction to one plane.
What is an Oscillation Direction
Orientation of particle movement in waves.
What is a Polarising Filter
Device allowing specific oscillation planes through.
What does it mean to be In Phase
Waves oscillate in the same position simultaneously.
What is Anti-Phase
Waves oscillate in opposite positions simultaneously.
What does it mean to be Out of Phase
Waves not synchronized in their oscillation cycles.
What is Phase Difference
Amount waves are out of phase, in degrees or radians.
What is Wavelength (λ)
Distance between two consecutive peaks or troughs.
Where is the Equilibrium Position
Central point around which particles oscillate.
What is Amplitude
Maximum displacement from equilibrium position.
What is Frequency (f)
Number of waves passing a point per second.
What is Period (T)
Time for one complete wave to pass a point.
What is Wave Velocity (v)
Speed of wave propagation, v = fλ.
Displacement vs Time Graph
Shows wave period as distance from crest to crest.
Displacement vs Distance Graph
Shows wavelength as distance from wave start to end.
What are Wave Fronts
Lines of constant phase in wave propagation.
What is the Crest
Highest point of a wave.
What is the Trough
Lowest point of a wave.
What is Radial Direction
Direction of wave travel from the source.
What is Particle Oscillation
Movement of particles in a wave.
What is a Wave Cycle
One complete wave pattern from crest to crest.
