Light πŸ’‘ Flashcards

1
Q

Luminous

A

It produces its own light source

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2
Q

Non-luminous

A

Object that does not create light

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3
Q

Ray

A

A narrow beam of light. We use arrow to represent it

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4
Q

Shadow

A

Where light cannot get to

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5
Q

Absorb

A

To soak up. Or take in. It soaks up light and does not let it back out

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6
Q

Opaque

A

A material that does not let light through

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7
Q

Pupil

A

The black hole in the front of your eye that light can pass through

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8
Q

Reflect

A

To bounce off something

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9
Q

Translucent

A

Let’s light through

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10
Q

Transparent

A

Material that is see through

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11
Q

Angle of incidence

A

Angle between the incoming Ray and the normal

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12
Q

Angle of reflection

A

The angle between the normal and the reflected Ray

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13
Q

Normal

A

An imaginary line at right angles to the surface of an object

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14
Q

Scatter

A

Spread out in all directions

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15
Q

Refraction

A

The change in direction when light passes through a transparent object

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16
Q

Dispersion

A

The separating of the colours in light.

17
Q

Filter

A

Something that only lets certain colours through and absorbs the rest

18
Q

Spectrum

A

Seven colours of light

19
Q

Primary colours

A

Red green blue

20
Q

Secondary colours

A

Two primary colours put together