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Science > Light Colors And Reflection > Flashcards

Light Colors And Reflection Flashcards

1
Q

What colours are visible in the electromagnetic spectrum

A

Red orange yellow green blue indigo violet

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2
Q

3 types of rays before visible on electromagnetic spectrum

A

Infrared micro wave radio wave

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3
Q

3 rays on the right to electromagnetic spectrum

A

Ultra violet x-rays gamma rays

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4
Q

If the wavelength is short what is the frequency

A

High

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5
Q

If something has low frequency what type of wavelength does it have

A

Longer

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6
Q

What is incandescent and give an example

A

Light made from heat candle

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7
Q

phosphorescent give example

A

Glow in the dark objects

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8
Q

Example of electric discharge

A

Streetlights

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9
Q

Fluorescence example

A

Fluorescent light bulbs

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10
Q

Chemiluminescence example

A

Glow sticks

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11
Q

What is the incident ray

A

The ray that was shinned into the mirror

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12
Q

What is the reflected ray

A

The reflection of the incident ray

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13
Q

State 2 laws reflection

A

The incident ray reflected ray and the normal all lie on the same plane

The angle of reflection is equal to the angle of incidence

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14
Q

Additive colours are what

A

Red green and blue light

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15
Q

Subtractive colours are what

A

Cyan yellow magenta pigment

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16
Q

What is the principal axis

A

The perpendicular line that shines back on its self in the centre of the mirror

17
Q

What is c

A

The centre of curvature

18
Q

What is the vertex

A

Where the principal axis meets the mirror

19
Q

What is the focal point

A

Where all light rays parallel to the pa reflect

20
Q

What is focal distance

A

The distance between the focal point and the mirror

21
Q

What is the radius of curvature

A

The distance from the mirror to c

22
Q

What is a concave mirror and example

A

Concave mirrors cave in at the centre
Make up mirror

23
Q

What is a convex mirror and example

A

Convex mirrors bulge out in the centre
Spoons

24
Q

What are the characteristics of reflected images

A

Size orientation location type

25
Q

What are the types of images

A

Real and virtual

26
Q

What is the formula to find the image distance

A

1/f = 1/di + 1/do

27
Q

What is the formula for image height

A

Hi/ho = -di/do

Science (3 decks)

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