Draw below, a diagram of what your magnifying glass
looked like while you were trying to ignite your piece of paper.
Indicate areas of relative brightness/darkness.
Try and explain what is happening to the light to
cause your diagram above.
Why does the paper catch fire?
Do any particular colours catch fire better than
others?
Akoranga 2 Ngā Whāinga Ako
I can recall the order and use of each type of
electromagnetic radiation/hihi autōhiko
I can name the seven colours of the visible
spectrum and describe how to produce a spectrum by dispersion
Electromagnetic (EM) Radiation / Hihi
Autōhiko
A type of radiant energy which can
move through a vacuum (korekore).
Comes in many forms like visible light and heat
energy
Is a big spectrum (tūāwhiorangi)!
Task
Write down the order of the different electromagnetic waves
(ngaru autōhiko) (least energy to most energy). Hint:
ROYGBIV!
Visible Light / Aho Kitea
Visible light is only a very small part of the
spectrum
Is between \(380\)
to \(700 nanometers\)
Purple/violet has the most energy (shortest
wavelength)
Red has the least energy (longest wavelength)
Task: Write the order of the visible spectrum
colours
What is Wavelength / Roa o te Ngaru?
The distance between consecutive peaks or troughs
on a wave!
Red light has a wavelength of \(700nm\) which is \(0.0000007m\)!
Radio waves can have a wavelength of up to \(10,000km\)!
Gamma waves can have a wavelength of \(0.00000000001m\)!
Task
Revise the flashcards on the electromagnetic spectrum
(tūāwhiorangi autōhiko) on Quizlet!