09 Properties of Light WAVES Flashcards
amplitude
can be ignored
FREQUENCY and WAVELENGTH
are linked.
If one goes up, the other goes down.
what changes the colour
Changing the frequency and wavelength of a light wave changes its COLOUR.
What does changing the frequency and wavelength of a light wave change
the colour
whathas the lowest frequency/longest wavelength.
RED light has the lowest frequency/longest wavelength.
what has the lowest frequency/longest wavelength.
RED light has the lowest frequency/longest wavelength.
what has the highest frequency/shortest wavelength.
VIOLET light has the highest frequency/shortest wavelength.
what is red
RED light has the lowest frequency/longest wavelength.
what is violet
VIOLET light has the highest frequency/shortest wavelength.
what does all the colours of the rainbow make
white light
what does all the colours of the rainbow make
white light
what is white light made up of
White light is made up of all the colours of light added together.
what is the spectrum
RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET.
what is RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET.
the order of the spectrum
why can we see colours
Objects around us appear to be different colours because they absorb and reflect different parts of the spectrum.
why does a white object appear white
A white object looks white because it reflects all the colours.
why does a red object appear red
When you look at a red object in white light it looks red because it reflects the red frequencies and absorbs the others.
why does a black object appear black
Black objects absorb all the colours in white light.
