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SCEN > 9-11 Vocab > Flashcards

9-11 Vocab Flashcards

(67 cards)

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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
In a \_\_\_\_\_\_\_\_, refracted light appears as if it were reflected light. With convection, this type of refraction occurs on roads (wavy looking).
mirage
19
The *periodic* variation in the loudness of *sound* is called \_\_\_\_\_\_\_.
**beats**
20
\_\_\_\_\_\_\_\_ refers to the *distance* from the **midpoint** to the **crest** of the wave.
***amplitude***
21
\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_\_ is the frequency at which a free system vibrates.
natural frequency
22
\_\_\_\_\_\_ is the subjective impression of the frequency of sound.
Pitch
24
\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_ are clustered regions of aligned magnetic atoms.
**Magnetic domains**
25
\_\_\_\_\_\_\_\_ interference results from **crest-to-crest** *reinforcement*.
***Constructive***
27
The ________ is the *distance* _between_ **successive crests.**
***wavelength***
28
\_\_\_\_\_\_ is the bending of a wave, either through a nonuniform medium or from one medium to another, caused by differences in wave speed.
***Refraction***
30
The _______ wave remains in a **CONSTANT** position. *2 people move a jumping rope up and down*
***standing***
31
When a \_\_\_\_\_\_\_ \_\_\_\_\_\_\_ is an integer multiple of the lowest frequency, it is a harmonic.
**partial tone**
32
\_\_\_\_\_\_\_\_ is the separation of light into colors arranged by frequency. Because of this....there are RAINBOWS! =]
Dispersion
34
Clusters of aligned atoms. _______ \_\_\_\_\_\_\_\_ form due to interaction with external magnetic force.
*magnetic domains*
35
In _________ waves, the wave direction is the same as the direction of wave travel.
*longitudinal*
36
An \_\_\_\_\_\_ \_\_\_\_\_\_\_ is an energy-carrying wave emitted by vibrating electric charges
**electromagnetic wave**
37
A \_\_\_\_\_\_\_ \_\_\_\_\_\_\_ is the loud sound *resulting from a shock wave*.
**sonic boom**
38
\_\_\_\_\_\_\_ interference results from **crest-to-trough** *_cancellation_*.
***Destructive***
39
\_\_\_\_\_\_\_\_ is the separation of light into colors arranged by frequency. *Because of this....there are RAINBOWS! =]*
**Dispersion**
40
Shattering of a crystal wineglass occurs when exposed to a musical tone of its \_\_\_\_\_\_\_\_\_\_\_ frequency. Selective radio stations are due to electrical \_\_\_\_\_\_\_\_\_\_\_\_.
**resonant, resonance**
41
\_\_\_\_\_\_\_ \_\_\_\_\_\_\_\_ is a *deflecting* force due to the motion of the charge.
***magnetic force***
42
**Light** consists of ______ waves.
***transverse***
42
\_\_\_\_\_\_ is the return of a sound, such as an echo.
**Reflection**
43
Regarding the **MAGNETIC FORCE:** the *deflecting force* is _______ to the velocity of the charge and ________ to the magnetic field lines.
***perpendicular, perpendicular***
44
**LOWEST** frequency for vibration, or the 1st harmonic is called the _______ \_\_\_\_\_\_\_\_\_.
*fundamental frequency*
45
\_\_\_\_\_\_\_\_ waves occur when the wave motion is **PERPENDICULAR** to the direction of wave travel.
*Transverse*
47
For a vibrating body or medium, _____ is the number of vibrations per unit time.
*frequency*
48
\_\_\_\_\_ is the characteristic timbre of a musical sound. Governed by the number and relative intensities of partial tones.
**Quality**
50
If the **secondary coil **has *fewer* turns than the **primary coil**, then this is a \_\_\_\_\_\_ _______ \_\_\_\_\_\_\_.
**step down transformer**
51
An ________ is usually in the form of a wire coil with a piece of iron inside the coil.
**electromagnet**
52
The law of \_\_\_\_\_\_\_\_ states that: "The angle of reflection equals the angle of incidence."
*reflection*
53
A magnet whose field is produced by an electric current is called an \_\_\_\_\_\_\_\_\_.
**electromagnet**
54
\_\_\_\_\_\_\_ primary colors, **RED**, **GREEN**, and **BLUE** are mixed to make *ANY* color.
***Additive***
55
If light can pass through glass or water **without** _absorption_ (usually in straight lines) then these materials are \_\_\_\_\_\_\_\_\_ to light.
***transparent***
56
\_\_\_\_\_\_ is the condensed region of the medium through which a ***longitudinal*** wave travels.
**Compression**
58
**Sound** consists of \_\_\_\_\_\_\_ waves.
*longitudinal*
59
The **_cone-shaped_** *wave* called the \_\_\_\_\_\_ \_\_\_\_\_\_ is made by an object moving at supersonic speed through a fluid.
***shock wave***
60
\_\_\_\_\_\_\_\_ is the **re-echoed *sound***
**Reverberation**
61
\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_ is the lowest frequency of vibration, or the 1st harmonic.
*Fundamental frequency*
63
The *deflecting* force is _greatest_ when the charge moves ________ to the field lines and _smallest_ when it moves ________ to the field lines.
*perpendicular*, *parallel*
64
\_\_\_\_\_\_ = frequency x wavelength
*Wave speed* **m/s**
65
The change in frequency of wave motion resulting from motion of the sender or the receiver is the \_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_.
**Doppler Effect**
66
A _______ converts mechanical energy into electric energy.
generator
67
Partial tones that are whole multiples of the fundamental frequency are called \_\_\_\_\_\_\_\_\_\_.
*harmonics*

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