Zachary English Flashcards

(34 cards)

0
Q

What is Pitch?

A

How high or low a sound is heard.

Depends of the frequency

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1
Q

What is a Sound Wave

A

Longitudinal Wave
Caused by vibrations
Travels through a median

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2
Q

What is Infrasound

A

Low frequency sound that can’t be heard by humans

Below 20 hertz

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3
Q

What is Ultrasound?

A

Frequency higher then 20,000 hertz

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4
Q

What is Resonance?

A

When two objects vibrate at the same frequency

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5
Q

What is Intensity?

A

How fast the energy flows through a given area.

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6
Q

What is a Decibel?

A

Unit used to measure intensity of a sound

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7
Q

What is Fundimental Frequency

A

Lowest frequency produced

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8
Q

What are Harmonics?

A

Whole number multiples of the fundimental frequency

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9
Q

What is Sonar?

A

(Sound navigation and ranging)

Uses sound waves that bounce off objects and returns back to source. Can be used to determine distance of objects.

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10
Q

What is the Basilar Membrane?

A

Long flexible membrane in the cochlea. Different parts of it vibrate at different natural frequencies.

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11
Q

What is a Photon?

A

A unit of light

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12
Q

Intensity?

A

Rate energy flows through a given space

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13
Q

What is Radar?

A

(Radio detection and ranging) uses reflected radio waves to determine location and velocity of objects.

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14
Q

What is the Electromagnetic Spectrum?

A

The range of wavelengths over which electromagnetic radiation extends

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15
Q

What is a light Ray?

A

Describes reflection and refraction.

16
Q

Virtual image?

A

Virtual image appears far behind a mirror when you are in front

17
Q

Real image?

A

Image formed by light waves that come together at a specific location.

18
Q

Diffuse Reflection?

A

Reflection of light in random directions

19
Q

Geometrical optics?

A

The study of light When light behaves like a wave

20
Q

Angle of reflections?

A

The angle of light rays reflecting off a surface

21
Q

Angle of incidence?

A

Same angle as rays striking the surface

22
Q

Law of reflection?

A

Th fact of the angle of incidence is the same is the same as the angle of reflection

23
Q

Normal?

A

Perpendicular line at the surface of the point where light hits the mirror

24
Convex mirror?
Mirror that bulges out
25
Concave mirror?
Mirror that caves in
26
Total internal reflection?
When light meets at the boundary of two mediums
27
What is a lens?
Transparent object that refracts lights.
28
Magnification?
Bending of light that makes an object change in size
29
What is a prism?
Transparent figure that has two or more planes that is at an angle with each other
30
What is Dispersion?
Separation of waves with different frequencies.
31
What's a Mirage?
Image reflected by light in Atmoshpere
32
Converging lens?
Transparent object that bends light inward
33
Focal point?
Small area where light rays come together and focus together