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SCEN > 9-11 Vocab > Flashcards

9-11 Vocab Flashcards

1
Q

Slow motion produces ______ voltage. Rapid motion produces _______ voltage.

A

lesser, greater

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1
Q

_________ is the region of lessened pressure, of a medium which a longitudinal wave travels.

A

Rarefaction

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1
Q

________ includes 3 colors of *absorption: *

MAGENTA, YELLOW, and CYAN. Any color can be made!

A

Subtractive

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1
Q

________ is the alignment of the transverse electric vectors that make up electromagnetic radiation.

A

Polarization

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2
Q

A magnetic field is induced in any region of space in which an electric field is changing with time.

A

Maxwell’s counterpart to Faraday’s Law

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2
Q

A ________ is a wiggle in time.

A

vibration

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2
Q

_______ colors are any 2 colors that when mixed, produce WHITE light.

A

Complementary

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3
Q

Like poles ______ opposite poles _______.

A

repel, attract

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3
Q

The induction of voltage when a magnetic field changes with time is called ______________ __________.

A

electromagnetic induction

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3
Q

The SI unit for frequency is called _____.

A

hertz (Hz)

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3
Q

The __________ _________ consists of frequency waves ranging from radio waves to gamma rays.

A

electromagnetic spectrum

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3
Q

___________ light limits the amount of light.

A

Polarized

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4
Q

________ ________ is reflection from a rough surface.

A

Diffuse reflection

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5
Q

________ is the bending of an oblique ray of light when it passes from one transparent medium to another.

This is why submerged objects appear closer

A

Refraction

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6
Q

An electric field is induced in any region of space in which a magnetic field is changing with time.

A

Faraday’s Law

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6
Q

A wiggle in both space and time is a ______.

A

wave

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8
Q

For a wave, ______ is the number of crests that pass a particular point per unit time.

A

frequency

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9
Q

Books, desks, chairs, and people are ________

because they absorb light WITHOUT re-emission.

A

opaque

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10
Q

The setting up of vibrations in an object by a vibrating force is called the ______ _________.

A

forced vibration

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11
Q

________ is the alignment of the transverse electric vectors that make up electromagnetic radiation.

A

Polarization

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12
Q

If the **secondary coil **has more turns than the primary coil, then greater voltage is induced in the secondary, this is a _______ ____ ______.

For example, if there is one turn in the primary and ten turns in the secondary coil, the voltage in the secondary coil will be 10 times that in the primary.

A

step up transformer

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13
Q

A ______ wave is the V-shaped wave made by an object moving across a liquid surface at a speed greater than the wave speed.

A

bow

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15
Q

________ ________ is one of the frequencies present in a complex tone.

A

Partial tone

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17
Q

An _____ is the result of superimposing different waves, often of the same wavelength.

A

interference

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17
Q

In a ________, refracted light appears as if it were reflected light.

With convection, this type of refraction occurs on roads (wavy looking).

A

mirage

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19
Q

The periodic variation in the loudness of sound is called _______.

A

beats

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20
Q

________ refers to the distance from the midpoint to the crest of the wave.

A

amplitude

21
Q

_______ _________ is the frequency at which a free system vibrates.

A

natural frequency

22
Q

______ is the subjective impression of the frequency of sound.

A

Pitch

24
Q

_______ ________ are clustered regions of aligned magnetic atoms.

A

Magnetic domains

25
Q

________ interference results from crest-to-crest reinforcement.

A

Constructive

27
Q

The ________ is the distance between successive crests.

A

wavelength

28
Q

______ is the bending of a wave, either through a nonuniform medium or from one medium to another, caused by differences in wave speed.

A

Refraction

30
Q

The _______ wave remains in a CONSTANT position.

2 people move a jumping rope up and down

A

standing

31
Q

When a _______ _______ is an integer multiple of the lowest frequency, it is a harmonic.

A

partial tone

32
Q

________ is the separation of light into colors arranged by frequency.

Because of this….there are RAINBOWS! =]

A

Dispersion

34
Q

Clusters of aligned atoms. _______ ________ form due to interaction with external magnetic force.

A

magnetic domains

35
Q

In _________ waves, the wave direction is the same as the direction of wave travel.

A

longitudinal

36
Q

An ______ _______ is an energy-carrying wave emitted by vibrating electric charges

A

electromagnetic wave

37
Q

A _______ _______ is the loud sound resulting from a shock wave.

A

sonic boom

38
Q

_______ interference results from crest-to-trough cancellation.

A

Destructive

39
Q

________ is the separation of light into colors arranged by frequency.

Because of this….there are RAINBOWS! =]

A

Dispersion

40
Q

Shattering of a crystal wineglass occurs when exposed to a musical tone of its ___________ frequency.

Selective radio stations are due to electrical ____________.

A

resonant, resonance

41
Q

_______ ________ is a deflecting force due to the motion of the charge.

A

magnetic force

42
Q

Light consists of ______ waves.

A

transverse

42
Q

______ is the return of a sound, such as an echo.

A

Reflection

43
Q

Regarding the MAGNETIC FORCE:

the deflecting force is _______ to the velocity of the charge and ________ to the magnetic field lines.

A

perpendicular, perpendicular

44
Q

LOWEST frequency for vibration, or the 1st harmonic is called the _______ _________.

A

fundamental frequency

45
Q

________ waves occur when the wave motion is PERPENDICULAR to the direction of wave travel.

A

Transverse

47
Q

For a vibrating body or medium, _____ is the number of vibrations per unit time.

A

frequency

48
Q

_____ is the characteristic timbre of a musical sound. Governed by the number and relative intensities of partial tones.

A

Quality

50
Q

If the **secondary coil **has fewer turns than the primary coil, then

this is a ______ _______ _______.

A

step down transformer

51
Q

An ________ is usually in the form of a wire coil with a piece of iron inside the coil.

A

electromagnet

52
Q

The law of ________ states that: “The angle of reflection equals the angle of incidence.”

A

reflection

53
Q

A magnet whose field is produced by an electric current is called an _________.

A

electromagnet

54
Q

_______ primary colors, RED, GREEN, and BLUE are mixed to make ANY color.

A

Additive

55
Q

If light can pass through glass or water without absorption (usually in straight lines)

then these materials are _________ to light.

A

transparent

56
Q

______ is the condensed region of the medium through which a longitudinal wave travels.

A

Compression

58
Q

Sound consists of _______ waves.

A

longitudinal

59
Q

The cone-shaped wave called the ______ ______ is made by an object moving at supersonic speed through a fluid.

A

shock wave

60
Q

________ is the re-echoed sound

A

Reverberation

61
Q

________ _______ is the lowest frequency of vibration, or the 1st harmonic.

A

Fundamental frequency

63
Q

The deflecting force is greatest when the charge moves ________ to the field lines and

smallest when it moves ________ to the field lines.

A

perpendicular, parallel

64
Q

______ = frequency x wavelength

A

Wave speed

m/s

65
Q

The change in frequency of wave motion resulting from motion of the sender or the receiver is the ________ _______.

A

Doppler Effect

66
Q

A _______ converts mechanical energy into electric energy.

A

generator

67
Q

Partial tones that are whole multiples of the fundamental frequency are called __________.

A

harmonics

SCEN (6 decks)

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