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5th Grade Light Notes > 5th Grade Light Notes > Flashcards

5th Grade Light Notes Flashcards

1
Q

The high point of a wave is called the _______or the_______

A

Peak or the crest

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2
Q

The low point of a wave is called the

A

Trough

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3
Q

Waves can be measured in

A

Wavelengths

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4
Q

A wavelength is the difference between____ _____ _____(crest) to the next______ _______(crest) or from one _______ to the next_________

A

One wave peak
Wave peak
Trough
Trough

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5
Q

Light has properties of both a_______and a________

A

Wave and a particle

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6
Q

Recent theory identifies light as a small particle called a

A

Photon

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7
Q

A photon moves in a______line

A

Straight

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8
Q

In both the light wave and the photon descriptions, light is______

A

Energy

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9
Q

Because light has both electric and magnetic fields, it is referred to as

A

Electromagnetic radiation

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10
Q

Light waves move as______ ______and travel through a vacuum at a speed of approximately_______miles per second.

A

Transverse waves

186,000

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11
Q

Compared to sound, light travels extremely_____

A

Fast

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12
Q

It takes light from the sub less than_______minutes to travel 93 million miles to reach earth.

A

8 1/2

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13
Q

Unlike sound, light waves travel in a straight path called______and do not need a medium through which to move.

A

Rays

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14
Q

A ray is the straight line that represents the____of_____.

A

Path of light

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15
Q

A beam is a group of________rays

A

Parallel

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16
Q

Light waves are characterized by their_________and the frequency of their wavelengths.

A

Wavelengths

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17
Q

The size of a wave is measured as its________,which is the distance between two corresponding points on successive waves, usually crest to crest or trough go trough. The wavelength can be measured from any point on a wave as long a sit is measured to the same point on the next wave.

A

Wavelength

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18
Q

________is the number of waves passing a given point every second. The greater the_______,the greater the amount of energy.

A

Frequency

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19
Q

Light waves are waves of______. The amount of energy in a light wave is proportionally related to its frequency.

A

Energy

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20
Q

High frequency light has_____ ______, low frequency light has_____ ______.

A

High energy

Low energy

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21
Q

The move wavelengths in a light wave in a given period of time, the______the energy level.

A

Higher

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22
Q

_______rays have the most energy. And ______waves have the least.

A

Gamma

Radio

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23
Q

Of visible light,_____has the most energy and____the least.

A

Violet

Red

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24
Q

The number of vibrations in a given time is called the_______

A

Frequency

25
Q

When a light wave hits an object it will either bounce off, called_______,bend, called_______, pass through called_______or be absorbed as heat.

A

Reflection
Refraction
Transmitted

26
Q

Some objects transmit light waves better than others._______materials do not allow light waves to pass through. Reynolds wrap is an example.

A

Opaque

27
Q

_______materials allow light to pass through but not in a straight path. Wax paper is an example of this.
These material allow light waves to pass through easily.

A

Translucent

28
Q

Light waves are extremely fast. It only takes a light wave eight and 1/2 minutes to travel 150 million kilometers from the sun to the earth. In addition to being fast, these waves are also very______. Amazingly enough, our eyes can see them. We call these visible waves the visible_____

A

Small

Spectrum

29
Q

We can see many different waves in this visible spectrum. Each of these visible waves is a different wavelength and our eye sees each one as a different color. The longest wave that we can see is called the color_____. The shortest wave that we can see is called the color_____.

A

Red

Violet

30
Q

The waves that make up the visible spectrum are_____,______,______,______,_____,______,and _____.

A 
Red
Orange
Yellow
Green
Blue
Indigo
Violet
31
Q

To see the different colors that make up white light, we need to use a_____

A

Prism

32
Q

When white light passes through a glass prism, it_____and changes direction. This bending of light is called a_______. Each of these waves in the visible spectrum bends differently, so we see different colors.

A

Bends

Refraction

33
Q

A small particle

A

Photon

34
Q

The high part of the peak

A

Crest

35
Q

The low point

A

Trough

36
Q

A measurement of a wave

A

Wavelength

37
Q

To travel in a straight path

A

Ray

38
Q

A group of parallel Rays

A

Beam

39
Q

The number of vibrations in a given time

A

Frequency

40
Q

Not that much energy

A

Low frequency

41
Q

The greater the frequency the more energy

A

High frequency

42
Q

Light bounces off

A

Reflection

43
Q

Light is bending

A

Refraction

44
Q

To pass through or be absorbed by heat

A

Transmitted

45
Q

Materials that do not allow light waves to pass through

A

Opaque

46
Q

Materials let light to pass through but not in a straight path

A

Translucent

47
Q

Materials allow light waves to pass through easily

A

Transparent

48
Q

Each visible wave is a different wavelength

A

Visible spectrum

49
Q

We need this to see different colors

A

Prism

50
Q

What colors are not spectral colors

A

Black

White

51
Q

Black is a total absence of_______light

A

Reflected

52
Q

_____is a reflection of all visible light together.

A

White

53
Q

The term______light refers to light waves that are neither transmitted nor absorbed, but are thrown back from the surface of the medium they encounter.

A

Reflected

54
Q

If the surface of the medium contacted by the wave is smooth and polished(mirror), each reflected wave will be reflected_____ at the same angle as the incident wave. The wave that strikes the surface of the medium(mirror) is called the ______wave, and the one that bounces back is called the______wave.

A

Back
Incident
Reflected

55
Q

The bending of a wave resulting from a change in its velocity(speed) as it moves from one medium to another(light moving from the air into water). The frequency of the wave does not change.

A

Refraction

56
Q

The amount of bending of the light wave(refraction) depends on

A

The density of the material
The wavelength of the light wave
The angle at which the original light wave enters the new medium

57
Q

Some examples of refraction are when

A

Refraction causes a setting sun to look flat

A spoon appears to bend when it is immersed in a cup of water

58
Q

Two kinds of waves that impact our lives everyday

A

Light waves and sound waves

5th Grade Light Notes (1 decks)

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