light absorption Flashcards
1
Q
what type of energy is light?
A
electromagnetic
2
Q
what does light travel in?
A
waves
3
Q
what is the distance between crests of the waves?
A
wavelength
4
Q
light behaves as though it consists of discreet particles called…
A
photons
5
Q
how does the energy of each photon of light vary with wavelength
A
the shorter the wavelength, the greater the energy of the energy of each photon of that light.
6
Q
the photons of violet light packs almost twice as much energy of as a photon of….
A
red light
7
Q
what is a substance that absorbs physical light?
A
pigments
8
Q
what colours of light does chlorophyll absrob
A
blue,red and violet
9
Q
what type of light does chlorophyll emit
A
green
