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Mr. Field > Science > Flashcards

Science Flashcards

1
Q

Medium

A

Any substance that a wave moves through

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2
Q

Mechanical wave

A

Waves that transfer energy through matter

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3
Q

Transverse wave

A

The direction in which the wave travels is perpendicular

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4
Q

Longitude wave

A

The wave travels in the same direction as the disturbance

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5
Q

Crest

A

The highest point

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6
Q

Trough

A

The lowest point

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7
Q

Amplitude

A

The distance between a line through the middle of a wave and a crest or trough

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8
Q

Wavelength

A

The distance from one wave crest to the very next wave crest

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9
Q

Frequency

A

The number of waves passing a fixed point in a certain amount of time

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10
Q

Reflection

A

The bouncing back of a wave after it strikes a barrier

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11
Q

Refraction

A

The bending of a wave as it enters a new medium at an angle other than 90 degrees

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12
Q

Diffraction

A

The spreading out of waves through an opening or around the edge of an obstacle

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13
Q

Interference

A

The meeting and combining of waves

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14
Q

Pitch

A

The characteristic of a highness or lowness of a sound

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15
Q

Hertz

A

One complete wave, or cycle, per second

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16
Q

Ultrasound

A

Sound waves in a range above 20,000 hertz

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17
Q

Resonance

A

The strengthening of a sound wave

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18
Q

Doppler effect

A

The change in perceived pitch that occurs when the source or the receiver of a sound is moving

19
Q

Intensity

A

The amount of energy its wave has

20
Q

Decibel

A

Used to measure sound intensity

21
Q

Amplification

A

The increasing of the strength of an electric signal

22
Q

Acoustics

A

The scientific study of sound

23
Q

Echolocation

A

Sending out ultra waves and interpreting the returning sound echoes

24
Q

Sonar

A

Instruments that use echolocation to locate objects

25
Q

Electromagnetic wave

A

A disturbance that transfers energy through a field

26
Q

Radiation

A

Energy that moves in the form of EN waves

27
Q

Electromagnetic spectrum

A

The range of all EM frequencies

28
Q

Radio waves

A

EM waves have the longest wavelengths, the lowest frequencies, and the lowest energies

29
Q

Microwaves

A

EM waves with shorter wavelengths, higher frequencies, and higher energy than other radio waves

30
Q

Visible light

A

The part of the EM spectrum that human eyes can see

31
Q

Infrared light

A

Consists of EM frequencies between micro waves and visible light

32
Q

Sound

A

A wave that is produced by a vibrating object and travels through matter

33
Q

Vibration

A

A rapid, back-and-forth motion

34
Q

Vacuum

A

Empty space

35
Q

Ultraviolet light

A

Consists of frequencies above those of visible light and partially below those of X-rays

36
Q

Incandescence

A

When a material gets it enough, it gives off light by glowing or by bursting into flames

37
Q

Luminescence

A

The production of light without the high temperatures needed for incandescence

38
Q

Bioluminescence

A

The production of light by living organisms

39
Q

Transmission

A

The passage of an EM wave through a medium

40
Q

Absorption

A

The disappearance of an EM wave into the medium

41
Q

Scattering

A

The spreading out of light rays in all directions, because particles reflect and absorb the light

42
Q

Primary colors

A

Three colors of light, which can be mixed to produce all possible colors

43
Q

Primary pigments

A

Cyan, yellow, and magenta

44
Q

Wave

A

A disturbance that transfers energy from one place to another

Mr. Field (1 decks)

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