Science Flashcards
Simply- Light is a form of ________ that you can see
Energy
When light reaches a surface, it can be absorbed and transferred into different types of energy- what are the three ways?
Electrical
Chemical
Thermal
What are some examples of artificial and natural energy
Artificial Natural
Batteries Sun
Light bulbs Fire
Flashlights
What are the 5 types of energy
-Incandescent
-Florescence
-Phosphorescence
-Chemiluminescent
-Bioluminescence
What is Florescence light
An electric current is driven through a tube containing argon gas and a small mercury vapour which makes invisible ultraviolet light that hits off a coating on the inside of the tube, which then gives off visible light
What is Incandescent light
Heat causing a filament of metal to glow
What is Phosphorescence
A process in which energy absorbed by a substance is released relatively slowly in the form of light.
What is Chemiluminescent
Chemiluminescence describes the emission of light that occurs as a result of certain chemical reactions
What is Bioluminescence
Bioluminescence is the production and emission of light by a living organism
The longer the wavelength the _________ the frequencies
Lower
When you see a colour, the reality is that the colour is every colour pigment except the one it appears
True or False?
True!
What are the 3 different types of transparency’s?
Transparency, translucent and opaque
What absorbs light
Rough, black, opaque surfaces
What reflects light
Smooth, shiny surfaces
What happens to the particles in light
They get excited and “jump”
What is the ray with the highest frequencies
Gamma Rays
What is the ray with the lowest frequencies
Radio
What are the 3 SCIENTIFIC primary colour
Red, Blue and Green
True or False
Energy can be created and destroyed
False
________s are the centre of light
Atom(s)
Light is _________ to energy
Transferred
Loss of energy is a form of what?
Radiation
Light radiates as a form of energy that is seen in the form of ________ or ________
Waves, Rays
What is the order of energy transfer in phosphorescence
Electrical ——-> UV ———> Visible
