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Optics Unit Science > Science-optics Unit > Flashcards

Science-optics Unit Flashcards

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Biology 101 flashcards
1
Q

What is light?

A

Light is an electromagnetic spectrum

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2
Q

What is a medium?

A

Any physical substance which energy can be transferred

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3
Q

Name the 6 types of rays on the electromagnetic spectrum

A

Radio waves, microwaves, infrared waves, ultra violet rays, x- rays, gamma rays

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4
Q

Phosphorescence

A

Glow-in-the-dark

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5
Q

Chemiluminescence

A

Production of light by a chemical reaction with no heat

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6
Q

Bioluminescence

A

Production of light in living organisms through a chemical reaction.

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7
Q

Triboluminescence

A

Production of light from crush on certain Crystals

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8
Q

What do Li and Lr stand for

A

Angle I (angle of incidence) Angle R (angle of reflection)

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9
Q

What are the two laws of reflection

A

Li=Lr
Li, Lr and the normal all lie in the same plane

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10
Q

What is speculator reflection

A

Reflection off a flat surface, this creates an image. Does not scatter light. Ex mirror.

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11
Q

What is diffuse reflection

A

Reflection of light off an irregular surface, this produces no image, only light.
(Scatters light) example. Snow

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12
Q

What does SALT stand for

A

Size, attitude, location, type

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13
Q

If an image is reflected in front of the mirror the image is known as

A

A real image

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14
Q

If the in age is reflected behind the mirror, the image is known as

A

Virtual

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15
Q

What are the two rules of finding image using perpendicular lines

A

Image and object, or equidistant from mirror
Image line must be perpendicular to the mirror

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16
Q

Diverging mirrors are also called

A

Convex

17
Q

Converging mirrors are also known as

A

Concave mirrors

18
Q

Convex mirrors do what to light

A

Light rays spread outward

19
Q

Concave mirrors do what to light

A

Brings light beams together to a focal point

20
Q

Name the parts of a curved mirror diagram v, c, f, pa,

A

Vertex, centre of curvature, focal point, principle axis

21
Q

Rules of converging mirrors

A

Rays parallel to the PA reflect through F
rays that pass through F reflect parallel to the PA
Rays that pass trough C reflect back upon themselves
Li=Lr

Optics Unit Science (1 decks)

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