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Science > Light Quiz > Flashcards

Light Quiz Flashcards

1
Q

What is light

A

A form of electromagnetic radiation

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2
Q

What is an electromagnetic wave

A

a wave that has both electric and magnetic parts. travels at the speed of light.

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3
Q

What is frequency

A

Determines a waves energy and colour

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4
Q

What is wavelength

A

How large the gap is between crest and the next crest

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5
Q

What does laser stand for

A

Light
Amplification by
Stimulated
Emission of
Radiation

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6
Q

How does a laser differ from a regular light

A

A laser produces electromagnetic waves of exactly the same energy level while a regular light produces electromagnetic waves of many different energy levels.

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7
Q

What is a plane mirror

A

Flat mirror

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8
Q

What is an incident ray

A

the incoming ray that strikes a surface

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9
Q

What is a reflected ray

A

the ray that bounces off a reflective surface

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10
Q

What is angle of incidence

A

the angle between the incident ray and the normal

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11
Q

What is angle of reflection

A

the angle between the reflected ray and the normal

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12
Q

What is specular reflection

A

reflection of light off a smooth surface

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13
Q

What is diffuse reflection

A

reflection of light off an irregular or dull surface

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14
Q

What is optical cloaking

A

Allows an object to be hidden in plain sight

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15
Q

Incandescence

A

the production of light as a result of high temperature

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16
Q

Fluorescence

A

fluorescence the immediate emission of visible light as a result of the absorption of ulraviolet light.

17
Q

Bioluminescence

A

the production of light in living organisms as the result of a chemical reaction with little or no heat produced

18
Q

Phosphorescence

A

the process of producing light by the absorption of ulraviolet light resulting in the emission of visible light over an extended period of time

19
Q

Light emitting diode

A

(LED) light produced as a result of an electric current flowing in semiconductors

20
Q

Chemiluminescence

A

the direct production of light as the result of a chemical reaction with little to no heat produced

21
Q

Triboluminescence

A

the production of light from friction as a result of scratching, crushing, or rubbing certain crystals

22
Q

Electric discharge

A

the process of producing light by passing an electric current through a gas

Science (13 decks)

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