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Science 8 > Light and Optics > Flashcards

Light and Optics Flashcards

(16 cards)

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0
Q

What are the types of Natural Light?

A

Bioluminescent: Living Things create light
Chemiluminescent: Glow Sticks

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1
Q

What are the types of Artificial Light?

A

Phosphorescent, glow in the dark after
Fluorescent, Tubes coated in phosphor
Incandescent, Uses electricity to heat filiment

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2
Q

What were the theories of light?

A

Pythagoras: Eyes Emit Light
Al-Haytham: Rainbows, Rays
Newton: Prisms, White Light
Archimedes: Light in Warefare

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3
Q

What are the Properties of Light?

A
  1. Light Travels at a Constant Speed
  2. Light can be bent or reflected
  3. Light travels in straight lines
  4. Light os a form of Energy
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4
Q

What are the colors in white light?

A 
Red
Orange
Yellow
Green
Blue
Indigo
Violet
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5
Q

What are Sources of Light (Man-made and Natural)?

A

Natural: Sun, Form of Hydrogen
Artificial: Burning

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6
Q

What do you measure in a wave model?

A

Frequency: Vibrations of waves per unit of time
Amplitude
Wavelength: Length from peak to peak

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7
Q

What is EMR?

A

Electro
Magnetic
Radiation

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8
Q

What is the Formula for Speed of Light?

A

Wavelength x Frequency

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9
Q

What is the order of waves in a spectrum?

A

Gamma Rays, X - Rays, UV Rays, Visible Light, Infrared, Microwaves, Radio Waves.

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10
Q

What are the two different types of Eyes?

A

Camera Eyes

Compound Eyes

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11
Q

What are the two types of Cameras?

A

Film Cameras

Digital Cameras

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12
Q

What is resolution?

A

How precise the image is

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13
Q

What are two types of Telescopes?

A

Refracting Lens

Reflecting Mirrors

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14
Q

What are the different types of Reflection?

A

Ir-regular, Diffuse

Regular

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15
Q

How do double convex and concave prisms affect light rays?

Study These Flashcards
A

Double Concave: Spreads out light

Double Convex:Brings light together

Science 8 (5 decks)

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