Crossword definitions Flashcards

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1
Q

A unit of measurement for light energy

A

Lumen

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2
Q

A type of energy used in laser pointers

A

Light beam

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3
Q

the opposite of darkness

A

Brightness

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4
Q

the bending of light as it passes through different materials

A

Refraction

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5
Q

A type of energy from the sun

A

Solar

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6
Q

A type of light used in Photosynthesis

A

Green light

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7
Q

a device that produces light energy

A

Bulb

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8
Q

A material that allows light to pass through

A

Transparent

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9
Q

The angle at which light strikes a surface

A

Angle of Incidence

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10
Q

The process of light bouncing off a surface

A

Reflection

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11
Q

A material that absorbs all light and reflects none

A

Black

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12
Q

A lens that bends light to make objects appear larger

A

Magnifying

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13
Q

The amount of light that passes through an object

A

Transparency

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14
Q

The colors that make up visible light

A

Rainbow

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15
Q

A type of energy that can be converted to electricity

A

Solar power

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16
Q

Red, orange, yellow, green, blue, indigo, violet

A

Colors of the Rainbow

17
Q

A type of light used in photography

A

Flash

18
Q

A type of energy that travels in waves

A

Light

19
Q

The study of light energy and its properties

A

Optics

20
Q

The amount of light reflected by an object

A

Reflectivity