Physics

Direction of transverse wave and give e.g.
- Perp to direction of energy transfer
- Light wave
Direction of longitudinal and give e.g.
- parallel to direction of energy transfer
- sound wave
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

gamma
which EM wave comes from a coal fire

infrared
which Em wave can bemused to sterilise medical equipment

gamma
Which Em wave has the longest wavelength

radio
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
Define refraction

the change in direction of a beam of light as it travels from one material to another.
Explain dispersion

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

Author

Anonymous

336554

Card Set

Physics

Description

physics

Updated

2017-12-05T16:08:04Z

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