The range of electromagnetic radiation that extends from the shortest gamma rays to the longest radio waves.
What is the electromagnetic spectrum
100
The colour in the visible spectrum with the highest wavelength (700nm).
What is red?
100
Light that is produced by an object, such as a metal , that is at a very high temperature. Only 5% of the electrical energy used is converted to light.
What is Incandescent Light
100
This type of material allows light to pass through it freely. It absorbs and reflects very little light.
What is transparent material
100
A branch of physics describing how light behaves and interacts with matter.
What is Optics
200
A wave pattern made of electric and magnetic fields that can travel through empty space.
What is Electromagnetic Radiation
200
Transparent glass or plastic object with flat, polished sides. When light passes through this, it separates into the colours of the rainbow.
What is a prism?
200
This source of light is an acronym for "Light Amplification by stimulated Emission of Radiation".
What is LASER
200
In this model, light is represented as straight lines called rays, which show the direction that light travels.
What is the Ray model of light
200
Everything around us that has mass and takes up space.
What is matter
300
Waves that are extremely high energy radiation that can penetrate human tissues. These are the shortest wavelengths in the electromagnetic spectrum.
What are Gamma Rays?
300
The colour in the visible spectrum with the shortest wavelength (400nm).
What is purple?
300
The ability of plants or animals to produce light.
What is Bioluminescence
300
This type of material absorbs and reflects light. It does not transmit light.
What is opaque material
300
The lighter, most outer part of a shadow.
What is penumbra
400
The type of electromagnetic radiation found in the electromagnetic spectrum that has the longest wavelength and lowest frequency waves.
What are radio waves?
400
The colour in the visible spectrum that has a wavelength of 450nm.
What is blue?
400
When friction creates light.
What is Triboluminescence
400
Type of reflection where incoming rays of light are parallel, but the outgoing rays are scattered. This occurs when reflecting off a bumpy, rough or uneven surface.
What is diffuse reflection
400
This type of material transmits some light. You cannot see through this material.
What is translucent
500
Unit used to measure the frequency of a wave.
What is Hertz?
500
The colour in the visible spectrum that has a wavelength of 550nm.
What is green?
500
A light source made up of several extremely thin layers of organic molecules that use an electric current to produce light.
What is Organic Light Emitting Display(OLED)
500
The darkest and most inner part of a shadow.
What is umbra
500
The colour produced when blue and red are paired together.