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MST Flashcards

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1
Q

It can travel through a medium & vacuum.

A

EM Waves

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2
Q

Repeated motion produced by a back-and-forth or up-and-down motion.

A

Vibration

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3
Q

Vibration produces _______

A

Waves

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4
Q

Vibration or disturbance of particles

A

Waves

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5
Q

Material that carries the wave

A

Medium

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6
Q

Give the types of Mediums

A

Solid, Liquid, and Gas

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7
Q

What does “Waves based on the nature of propagation” mean?

A

This means whether a material needs a medium

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8
Q

Types of Nature of Propagation

A

Mechanical Waves & Electromagnetic Waves

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9
Q

What is a mechanical wave?

A

A wave that requires a medium to propagate

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10
Q

What is an electromagnetic wave?

A

A wave that does not require a medium to propagate

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11
Q

Give 2 examples of mechanical waves

A

Ocean waves and Seismic waves

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12
Q

Give 2 examples of electromagnetic waves

A

Radio waves and Microwaves

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13
Q

What does “based on the direction of propagation” mean?

A

Waves classified according to how they move

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14
Q

Types of classifications based on the direction of propagation and what nature of propagation they’re under

A

Transverse waves-Electromagnetic waves
Longitudinal waves-Mechanical waves

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15
Q

Transverse waves are in what direction?

A

Perpendicular to the direction of the wave

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16
Q

Longitudinal waves are in what direction?

A

Parallel to the direction of the wave

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17
Q

What is a wavelength?

A

Distance between identical points

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18
Q

What is a period?

A

The time it takes a wave to complete a cycle

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19
Q

What is an amplitude?

A

The displacement from the equilibrium

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20
Q

What is a frequency?

A

number of wave cycles per second

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21
Q

The crest is?

A

The highest point of a wave

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22
Q

The trough is?

A

The lowest point of a wave

23
Q

What is the equilibrium?

A

The resting position

24
Q

Has the longest wavelength and lowest frequency

A

Radio waves

25
Q

Who discovered radio waves?

A

James Clerk Maxwell

26
Q

It is an electromagnetic wave that can be seen by human eye

A

Visible light

27
Q

Who discovered visible light?

A

Isaac Newton

28
Q

All objects can omit this type of wave

A

Infrared ray

29
Q

Who discovered infrared rays?

A

Herschel

30
Q

Has shorter wavelength but greater energy than visible light

A

Ultraviolet rays

31
Q

Who discovered UV Rays?

A

Ritter

32
Q

Its name means unknown ray

A

X-ray

33
Q

Who discovered X-rays?

A

Roentgen

34
Q

A wave used in a house furniture

A

Microwave

35
Q

Who discovered microwaves?

A

Spencer

36
Q

Has the highest energy and smallest wavelength

A

Gamma rays

37
Q

Who discovered gamma rays?

A

Villard

38
Q

Who named gamma rays?

A

Rutherford

39
Q

AM means?

A

Amplitude Modulation

40
Q

FM means?

A

Frequency Modulation

41
Q

What does RADAR mean?

A

Radio Detecting and Ranging

42
Q

RMIVUXG stands for?

A

Radio, Micro, Infrared, Visible Light, Ultraviolet, X-ray, Gamma ray

43
Q

Unit for wavelength

A

m

44
Q

Unit for frequency

A

Hz, s^-1, 1/s

45
Q

The phrase to remember the conversion of units

A

King Herny Died By Drinking Cholocate Milk

46
Q

What is a possible outcome of using UV Rays?

A

It can harm human health

47
Q

Are microwaves typically safer for human exposure than gamma rays?

A

Yes

48
Q

The complete distribution of electromagnetic waves

A

Electromagnetic Spectrum

49
Q

Has the highest frequency in the visible spectrum

A

Violet

50
Q

What year did Roentgen accidentally discover x-rays?

A

1895

51
Q

Coined the term Gamma ray

A

Rutherford

52
Q

Is it true that energy increases with frequency?

A

Yes

53
Q

A wave has a frequency of 6.3 x 10^-8 Hz, what is its wavelength?

A

4.76 x 10^15 m

54
Q

What’d be the frequency of a wave if the value of its wavelength is equivalent to 22m?

A

1.36 x 10^4 Hz

PHYSICS (2 decks)

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