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G10 2Q > Science W1 - Electromagnetic Waves > Flashcards

Science W1 - Electromagnetic Waves Flashcards

1
Q

are disturbances that are used to transfer energy from one place to another without transferring matter

A

waves

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2
Q

highest point of a wave

A

crest

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3
Q

lowest point of a wave

A

trough

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4
Q

the vertical distance between the tip of a crest and the wave’s central axis

A

amplitude

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5
Q

refers to the number of full wavelengths that pass by a given point in space every second

A

frequency

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6
Q

the SI unit for frequency

A

Hertz (Hz)

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7
Q

the horizontal distance between two consecutive troughs or crests

A

wavelength

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8
Q

unit of measurement for wavelength

A

meter (m)

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9
Q

the symbol used for wavelength

A

lambda (λ)

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10
Q

2 types of waves

A

mechanical and electromagnetic

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11
Q

a wave that is an oscillation of matter that requires a medium

A

mechanical wave

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12
Q

3 general types of mechanical waves

A

transverse
longitudinal
combined

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13
Q

a mechanical wave where particle motion is perpendicular to wave motion

A

transverse wave

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14
Q

a mechanical wave where particle motion is in the same direction as wave motion

A

longitudinal wave

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15
Q

are like sea waves

A

combined wave

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16
Q

a type of wave formed when an electric field comes in contact with a magnetic field. These waves are transverse.

A

electromagnetic wave

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17
Q

an electrical and magnetic disturbance that moves through space at the speed of light. They are waves created as a result of vibrations between an electric and magnetic field.

A

electromagnetic waves

18
Q

speed of light and electromagnetic waves

A

3.0×10⁸ m/s

19
Q

2 fields composing an electromagnetic wave

A

electric field and magnetic field

20
Q

field created by charged particles

A

electric field

21
Q

field produced by moving electric charges

A

magnetic field

22
Q

a region around a charged particle where a force would be exerted on other charged particles

A

electric field

23
Q

a region around a magnetic material or a moving electric charge within which the force of magnetism acts

A

magnetic field

24
Q

a Scottish physicist who predicted the existence of electromagnetic waves in 1862

A

James Clerk Maxwell

25
Q

a German physicist who confirmed Maxwell’s theory that waves other than light exist

A

Heinrich Hertz

26
Q

are oscillations that may occur at very low frequency or at an extremely high frequency and the entire range of frequencies

A

electromagnetic spectrum

27
Q

a range of electromagnetic waves that extends from the longest wavelengths of radio waves up to the high frequency of gamma rays

A

electromagnetic spectrum

28
Q

waves with the longest wavelengths and lowest energy

A

radio waves

29
Q

waves with the second longest wavelengths and second lowest energy

A

microwaves

30
Q

waves that are used by mosquitoes to find warm-blooded animals

A

infrared waves

31
Q

waves that fall within the color spectrum

A

visible light

32
Q

waves seen by bees and are in pollen guides from flowers

A

ultraviolet

33
Q

waves with the second shortest wavelengths and the second highest energy

A

x-rays

34
Q

waves with the shortest wavelengths and highest energy on the spectrum

A

gamma rays

35
Q

planets

A

radio waves

36
Q

heat lamps

A

infrared

37
Q

color spectrum

A

visible light

38
Q

hospitals

A

x-rays

39
Q

shortest wavelengths

A

gamma rays

40
Q

As the wavelength decreases, the frequency _________?

A

increases

41
Q

As the wavelength increases, the frequency _________?

A

decreases

42
Q

Each type of wave occupies a particular range of wavelengths known as?

A

band

G10 2Q (22 decks)

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