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Optics Grade 10
Light - โ
Light is a form of energy, that travels like a wave Wave - โ
Disturbance that transfers energy from one point to another Wave Length - โ
Distance from crest to crest or trough to trough Frequency - โ
Rate of Repetition of the Wave Amplitude - โ
Wave Height The Electromagnetic Spectrum - โ
Range of Electromagnetic Radiation (waves) in order of Wave Length or Frequency Laws of Reflection - โ
Angle of Incidence is Equal to the Angle of Reflection, Incident Reflected Ray and Normal are all in the same plane Light Transmission - โ
Light travelling through medium Medium - โ
Substance through which light is travelling Reflection - โ
The change in direction of light ray when it bounces off a surface Natural -
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Sun Jellyfish Artificial - โ
Light Bulb Luminous - โ
Produce Their Own light Non-Luminous - โ
Do not produce their own light Incandescent - โ
A Tiny tungsten wire that glows when electricity runs through it Fluorescent - โ
Light that is emitted during exposure to source of ultraviolet light Chemiluminescence - โ
Light that is produced by a chemical reaction without a rise in temperate (glow sticks) Bioluminescence - โ
-light that is produced by biochemical reactions in a living organism (jelly fish, starfish, firefly) Triboluminescence - โ
-Is the emission of light resulting from something being smashed Phosphorescence - โ
-Excited atoms retain the energy for several minutes- a few hours Diffuse - โ
The reflection off of a rough surface Real Image -
At Critical Angle - โ
Refracts/Reflects at 90 degrees Myopia - โ
nearsightedness, eyes too long, light focuses Infront of eye correcting with diverging lens Hyperopia - โ
Farsightedness, light focuses behind retina, eyes too short Presbyopia - โ
Aging eyes, loss of elasticity Color Blindness - โ
Inability to see color, poor development of cone cells passed down by 23rd chromosome (males 1 x females 2 xx's) Normal Vision - โ
20/ Optic Nerve - โ
Nerve that connects eye to the brain Pupil - โ
Black opening located in the center of the iris that allows light to enter the eye Cornea - โ
The Eye's clear outer coating that covers the iris and pupil Sclera - โ
Tough white protective tissue that covers all of the eyeball except the cornea Iris -
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The eyes colored part that has muscles to control the amount of light that can enter Muscles - โ
There are six muscles that are attached to your eyeballs. Allow you to look up, down, right, left AND ALL-AROUND WOO GO MUSCLES Blood Vessels - โ
The Body's tubes through which the blood flows Aqueous Humor - โ
This clear fluid fills the front part of the eyeball, located in between the cornea, lens and iris Lens - โ
Curved Clear part that is located inside the eye for focusing light on the eye's back lining Virtuous Humor - โ
Jelly-Like substance fills the back part of the eyeball behind the lens Retina - โ
Lining on the back of the eyeball made of several layer of cells, very sensitive Rods - โ
Allows us to see in dim-light Cones - โ
Allows us to see colour, red, green and blue Microscope - โ
1st objective lens makes object slightly bigger than 2nd eyepiece lens that refracts the light to makes the object even bigger and it becomes a virtual image Kaleidoscope -
