Ideas About Light
Optical Devices
Mirrors/Lenses
Electromagnetic Spectrum
Cameras & Eyes
100
This philosopher theorized that light beams came from one's eyes, allowing them to see.
Who is Pythagoras?
100
Experimenting with the first microscopes eventually led to this new branch of science.
What is microbiology?
100
This type of lens causes light rays to diverge such that they never meet at a focal point.
What is a concave lens?
100
This colour has the shortest wavelength.
What is violet?
100
This type of eye is made up of many smaller units and is commonly found in insects, crabs, lobsters, etc.
What are compound eyes?
200
This Greek Mathematician discovered that when a light is shone on a flat mirror, the angle between the incoming beam and the mirror is equal to the angle between the reflected beam and the mirror.
Who is Euclid?
200
This optical device is used to view very small objects by combining the power of at least two lenses; the objective lens and the eyepiece lens.
What is a microscope?
200
The perpendicular line to a plane mirror at the point of reflection.
What is the normal?
200
The number of times the medium vibrates in a given unit of time.
What is the frequency?
200
The number of pixels per unit area in a digital image.
What is resolution?
300
He refined Ole Romer's measurement and calculated the speed of light through Earth's atmosphere to be 299 798 km/s.
Who is Albert A. Michelson?
300
This specific type of optical device uses a curved mirror and a lens to form an enlarged image.
What is a reflecting telescope?
300
The _______ the new medium, the more light will refract.
What is denser?
300
The primary colours of light.
What is Red, Blue and Green?
300
This type of photoreceptor cell in the retina is used to detect colour.
What are cones?
400
This English Scientist showed that white light is made up of a mixture of colours by shining white light through a prism.
Who is Sir Isaac Newton?
400
Binoculars are used to view distant object and are made up of two of this type of optical device attached together.
What is a refracting telescope?
400
This type of mirror causes light rays to converge.
What is concave?
400
This type of electromagnetic radiation cannot be seen but may be felt as heat.
What are infrared waves?
400
This part of the camera, similar to the iris in the eye, is the part that changes the amount of light that reaches the film.
What is the diaphragm?
500
In the first century A.D., this man described how light beams bend when they go from air to glass.
Who is Ptolemy?
500
Hans and Zacharias Jansen are usually given credit for the first of these optical devices.
What is a microscope?
500
This type of reflection happens when light rays hit a rough surface.
What is diffuse?
500
Fireflies possess this light-producing organ.
What is a photophore?
500
The part of the eye labelled 7 in this diagram.
What is the lens?