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Science Grade 10 > Chapter 10 Sefinitions > Flashcards

Chapter 10 Sefinitions Flashcards

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Biology 101 flashcards
1
Q

Wave

A

A disturbance that transfers energy from one point to another without transferring matter

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2
Q

Crest

A

The highest point in a wave

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3
Q

Trough

A

The lowest point in a wave

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4
Q

Rest position

A

The level of water when there are no waves

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5
Q

Wavelength

A

Distance from one place in a wave to the next similar place on the wave

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6
Q

Amplitude

A

The wave height from the rest position of the wave to the crest or the depth from rest to the trough

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7
Q

Frequency

A

The rate of repetition of a wave

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8
Q

Electromagnetic radiation

A

A wave pattern made of electric and magnetic fields that can travel through empty space

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9
Q

Electromagnetic spectrum

A

The entire range of electromagnetic radiation

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10
Q

Model

A

A representation of an object event or process based on our observation of its characteristics and properties

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11
Q

Property

A

An common attribute to all substances or objects of the same group

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12
Q

Wave model of light

A

The similarities between the lift and movement of waves in the surface of water to explain several properties of light

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13
Q

Prism

A

A transparent glass or plastic object with flat polished sides

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14
Q

Visible spectrum

A

The range of different colours of light

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15
Q

Additive colour theory

A

White lift is composed of different colours of light

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16
Q

Reflect

A

Bounce off the object

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17
Q

Subtractive colour theory

A

Coloured matter selectively absorbs different colours of wavelengths of light

18
Q

Bioluminescence

A

The ability of a plant or animal to produce light

19
Q

Incandescent light

A

Light that is produced by an object such as metal that is at a very high temperature

20
Q

Fluorescent light

A

Light emitted by some substances when they are exposed to electromagnetic radiation

21
Q

Phosphor

A

A substance that glows after being exposed to energized particles

22
Q

Phosphorescence

A

The ability to store the energy from a source of light and then emit it slowly over a long period

23
Q

Chemiluminescence

A

Light produced from a chemical reaction without a rise in temperature

24
Q

Tribiluminescence

A

Producing light from friction

25
Q

Electric discharge

A

A method for producing light in which an electric current passes through air or another gas such as neon

26
Q

Electroluminescent

A

The process of transforming electrical energy directly into lift energy

27
Q

Light emitting diode

A

An electeicluminescnet light source made it of a martial called a semiconductor

28
Q

Semiconductor

A

A material that can be made to change how well it conducts electricity

29
Q

OLED

A

Organic light emitting display

A light source made of several extremely thin layers of organic molecules that use an electric current to produce light

30
Q

Plasma display

A

Each colour is a tiny fluorescent light in which an electrical signal causes a bad such as neon to release uv

31
Q

LCD

A

Liquid crystal display

A white light such as a fluorescent light or light emitting diode shines behind a liquid crystal

32
Q

Liquid crystal

A

A solid that can change the orientation of its molecules like a liquid

33
Q

Ray model of light

A

Light is represented as straight lines called rays which show the direction that light travels

34
Q

Transparent

A

Transmit light freely absorb and reflect very little light

35
Q

Translucent

A

Transmit some light but not enough to see through the material clearly p

36
Q

Opaque

A

Absorb and reflect light do not transmit any light

37
Q

Umbra

A

The part of the shadow in which all light rays from the light source are blocked

38
Q

Penumbra

A

The area of partial shadow from a non point light source is called the penumbra

39
Q

Regular reflection

A

Light rays strike a smooth surface and reflect in the same direction staying parallel to each other

40
Q

Diffuse reflection

A

Light rays reflect off a rough or uneven surface they do not remain parallel but are scattered in different directions

Science Grade 10 (28 decks)

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