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Physical Science > Sound and Light Nick Scott > Flashcards

Sound and Light Nick Scott Flashcards

0
Q

What is a pitch?

A

Frequency of sound waves.

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1
Q

What is a sound wave?

A

They are a longitudinal wave. They vibrate the air molecules.

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2
Q

What is an infrasound?

A

A frequency higher than the human ear can hear.

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3
Q

What is ultrasound?

A

The human hearing range.

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4
Q

What is resonance?

A

Vibrates the entire instrument when at loudest sound.

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5
Q

What is a decibel?

A

The measurement of loudness.

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6
Q

What is fundamental frequency?

A

A standing wave of a string, but is twice the size of the string.

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7
Q

What is harmonics?

A

Whole numbers multiples of fundamental frequency.

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8
Q

What is sonar?

A

Sonar is a sound wave that goes until it hits something than comes back to the object that sent the sonar out.

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9
Q

What is basilar membrane?

A

Basilar Membrane is a long flexible membrane.

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10
Q

What is a photon?

A

A photon is bright red light that can’t knock electrons off of something.

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11
Q

What is intensity?

A

Intensity is the amount of light illuminating off something.

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12
Q

What is a radar?

A

Radar is a system that uses reflected radio waves to find the speed and location of something.

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13
Q

What is the Electromagnetic spectrum?

A

The Electromagnetic spectrum is all the frequencies of electromagnetic radiation.

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14
Q

What is a light Ray?

A

A light Ray is an imaginary line that Ravens in the direction of light.

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15
Q

What is a virtual image?

A

A virtual image is a image from a bend of light not the actual light path.

16
Q

What is a real image?

A

A real image is a virtual image behind a mirror.

17
Q

What is diffuse reflection?

A

Diffuse reflection is reflecting light in a random direction.

18
Q

What are geometrical optics

A

Geometrical optics are light behaving like waves.

19
Q

What is angle of reflection?

A

The angle of reflection is light reflecting off of something.

20
Q

What is angle of incidence?

A

The angle of incidence is light rays striking the surface.

21
Q

What is normal?

A

Normal is where the light hits the mirror.

22
Q

What is a convex mirror?

A

A convex mirror is a mirror that bulges out.

23
Q

What are concave mirrors?

A

A concave mirror is a mirror that is indented.

24
Q

What is total internal reflection?

A

Total internal reflection is a critical angle.

25
Q

What is a lens?

A

Lenses are a curved piece of glass.

26
Q

What is magnification?

A

Magnification is any change in size compared with the original size of the object.

27
Q

What is a prism?

A

A prism is a piece of glass that can cause whit light to split into Roygbiv.

28
Q

What is dispersion?

A

Dispersion is when light spreads into different colors.

29
Q

What is a mirage?

A

A mirage is a virtual image that is caused by refraction

30
Q

What is a converging lens?

A

A converging lens bends light inwards.

31
Q

What is a focal point?

A

A focal point is the point of a lens or mirror that either come together or move apart.

Physical Science (7 decks)

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