Waves Flashcards
(18 cards)
What is a transverse wave?
Oscillations perpendicular to the direction of energy travel
What is a longitudinal wave?
Oscillations parallel to the direction of energy travel
What is the wavelength?
Distance between two peaks
What is the amplitude?
Maximum displacement
What is frequency?
Number of waves per second
What is the speed, frequency and wavelength equation
V = f x λ (Speed = frequency x wavelength
How can you work out frequency?
Frequency = 1/time period
Calculate the frequency of the wave that is 0.2s
5hz
Calculate the frequency of the wave that is 0.5s
2hz
Calculate the time period of the following frequency wave : 20hz
0.05s
Calculate the time period of the following frequency wave : 10hz
0.1s
Calculate the time period of the following frequency wave : 0.1hz
10s
What is the equation to work out time period?
T = 1/f
What is the speed, frequency and wavelength triangle?
V
f λ
What will make a wave diffract?
If a wavelength is of a similar size to a gap, then the wave will diffract.
What is the relationship between the angle of incidence and the angle of reflection
Angle of reflection = angle of incident
What type of energy is transferred by longitudinal waves?
Sound
What type of energy is transferred by transverse waves?
Light