What is Light?
This is what light is a form of.
What is energy?
This star provides energy in the form of light.
What is the Sun?
Something that produces light.
What is luminous?
Incandescent light turns this energy into light energy.
What is heat energy?
This type of emission is caused by heating a filament.
What is incandescence?
Light energy is also called this.
What is radiant energy?
The process that produces energy in the Sun.
What is nuclear fusion?
Something that reflects light but does not create its own.
What is non-luminous?
Fluorescent light turns electrical energy into this first.
What is UV energy?
This type of light stops immediately after switching off.
What is fluorescence?
Light is energy transfer without the movement of this.
What is mass?
The Sun is about this many Astronomical Units from Earth.
What is 1 Astronomical Unit?
What is 1 Astronomical Unit?
What is 1?
The Moon is an example of this type of object.
What is non-luminous?
Chemiluminescent light turns this type of energy into visible light.
What is chemical energy?
This type of light has an afterglow that can last for hours.
What is phosphorescence?
Light contains these minute packets of energy.
What are photons?
We see objects because they do this to light.
What is reflect light?
What is reflect?
What is reflection?
Sources of light can be divided into these two categories.
What are natural and artificial?
Bioluminescent organisms turn chemical energy into this.
What is visible light energy?
Fluorescent lamps work by ionizing this vapor.
What is mercury vapor?
What is mercury?
Radiant energy is also known as this type of radiation.
What is electromagnetic radiation?
In nuclear fusion, two atoms do this when pulled together.
What is fuse together?
A lightbulb is an example of this category of source.
What is artificial?
Only this percent of energy used by an incandescent bulb is converted to light.
What is 10%?
These two molecules are involved in bioluminescence.
What are luciferin and luciferase?