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Year 7-8 Advance Science > Light > Flashcards

Light Flashcards

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Biology 101 flashcards
1
Q

Transparent

A

Easy to see through, clear image

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2
Q

Translucent

A

Fuzzy image, hard to see since some light reflects and some goes through

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3
Q

Opaque

A

Can’t see through at all

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4
Q

Transverse waves

A

Waves that move up and down

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5
Q

Equilibrium

A

The line in the middle

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6
Q

Frequency

A

How many waves that passes though in a second

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7
Q

Refraction

A

The bending of light as it enters another medium with a different density

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8
Q

Longitudinal wave

A

Wave that moves in the same direction

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9
Q

Law of reflection

A

Angle of incidence is equal to the angle of reflection

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10
Q

When can total internal reflection happen

A

Total internal reflection occurs when light travels though a medium that has a low reflective index

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11
Q

Is the angle of incidence always greater than the critical angle?

A

Yes

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12
Q

How can the angle of refraction be 90°

A

When the angle of incidence is equal to the critical angle

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13
Q

The higher the frequency

A

The lower the wavelength

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14
Q

The lower the frequency

A

The higher the wavelength

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15
Q

Primary colours

A

Red, Green and Blue

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16
Q

Secondary colours

A

Magenta, Cyan, Yellow

17
Q

Red + Blue

A

Magenta

18
Q

Blue + Green

A

Cyan

19
Q

Red + Green

A

Yellow

20
Q

Colour spectrum

A

Arranges colours in order of wavelength

21
Q

How many degrees is the normal

A

It is 90°

22
Q

Density

A

The amount of molecules in an area

23
Q

Refracted ray

A

The ray which has been bent due to the density of the media

24
Q

Velocity

A

The speed of something in a given direction

25
Q

ROYGBIV

A

Red, Orange, Yellow, Green, Blue, Indigo, Violet

26
Q

Red

A

Lowest frequency, longest wavelength and least refracted

27
Q

Violet

A

Highest frequency, shortest wavelength and most refracted

28
Q

Iris

A

The iris is the coloured circle surrounding the pupil. It changes the size of the pupil and allows different amounts of light to enter the eye

Year 7-8 Advance Science (10 decks)

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