Waves Flashcards
The maximum displacement of a point on a wave away from its undisturbed position is the…
Amplitude
The distance from a point on one wave to the equivalent point on the next wave is the …
wavelength
The number of waves passing a point each second is the…
Frequency
Name an example of a longitudinal wave
Sound
Name an example of a transverse wave
light, water, any electromagnetic
Oscillations are along the same direction as the direction of travel is a _________ wave
longitudinal
Oscillations are at right angles to the direction of travel in a ____________ wave
transverse
The time needed for one wave to pass a given point is the…
period
The region in a longitudinal wave where particles are closest together is a …
compression
The region in a longitudinal wave where particels are furthest apart is a…
rarefaction
An object is said to _________ radiation when energy from an EM wave is taken up by the object
absorb
An object is said to _________ radiation when a wave can pass through the object
transmit
The process taking place when a wave bounces off of a surface
reflection
The process taking place when a wave enters a different density medium and changes direction
refracion
Refraction changes both the _________ and ___________ of a wave
direction and speed
Which two angles are equal in reflection
angle of incidence and angle of reflection
Draw a transverse wave and label the wavelength and amplidtue
teacher to draw on board…
Draw a longitudinal wave and label the wavelength
teacher to draw on board…
Write the equation linking frequency, wavelength and wave speed
v = fλ
What is the unit of frequency?
Hertz (Hz)
What is the unit of wavelength?
metres (m)
What is the unit of wave speed?
metres per second (m/s)
What is the speed of elecrtomagnetic radiation?
300 000 000 m/s
What is the EM radiation with the shortest wavelength?
gamma
