Direction of transverse wave and give e.g.
Perp to direction of energy transfer
Direction of longitudinal and give e.g.
parallel to direction of energy transfer
How can you tell from a graph that the freq of the wave is constant
if the wavelength stays the same
Which EM wave has the shortest wavelength
which EM wave comes from a coal fire
which Em wave can bemused to sterilise medical equipment
Which Em wave has the longest wavelength
how do you find the freq of waves
time/ amount of waves altogether
how do you find the wave speed
freq x wavelength
properties of light?
travles in straight lines
travels at around 300,000km/s
far faster than sound
In reflection, what angles are equal?
incidence and reflection
what is the rhyme for the order of EM waves
remember my instruction under X-ray glasses
the change in direction of a beam of light as it travels from one material to another.
All colours of light travel at the same speed in air. Different colours travel at different speeds in glass. This means they bend by different amounts when they pass from air to glass.
what is the focal point
where the image being produced is at its sharpest.
what is the critical angle
where the beam of light reflects instead of refracts