Waves Flashcards
What are longitudinal waves
Longitudinal waves are when the oscillations are parallel to the direction of energy travel
What are transverse waves
Transverse waves are when the oscillations are perpendicular to the direction of energy travel
What is the definition of amplitude
Maximum displacement of oscillation/vibration (m)
What is the definition of wave length
Length of distance occupied by a single complete wave (m)
What is the definition of time period
The time taken for one completate wave cycle to pass a point (s)
What is a wave
A wave is the transferal of energy, but not matter
What is the definition of frequency
The number of wave cycles passing through a point per second (Hz)
What is the law of reflection
That the angle of incident is always equal to the angle of reflection
What is the definition of a normal
An imaginary line that is perpendicular to the boundary
What is the law of refraction
When a wave passes from one medium to another and its speed changes. This change is usually, but not always combined with a change of direction.
What is the law of refraction
When a wave passes from one medium to another and its speed changes. This change is usually, but not always combined with a change of direction.
The critical angle
Is the angle of incidence that causes the angle of refraction = 90*
What are the uses of TIR
Periscope, optical fibres, cats eye
