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Physics > Waves > Flashcards

Waves Flashcards

1
Q

Ultrasound waves can cause kidney stones to break apart using the principle called

A

Resonance

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2
Q

Name of point at which all light rays converge in a concave mirror

A

Focal point

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3
Q

Def of diverging

A

Splitting apart

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4
Q

Def of converging

A

Coming together

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5
Q

What is the type of lens in your eye

A

Convex

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6
Q

Sound waves travel slowest in

A

The air

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7
Q

Where would you put the camera near the mirror of a reflecting telescope

A

The focal point

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8
Q

Another word for amplitude of a sound wave is

A

Frequency

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9
Q

Sound waves do NOT travel in

A

A vacuum

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10
Q

Telescope mirrors in Hawaii are

A

Convex mirrors

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11
Q

Light travels slowest in

A

Diamonds

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12
Q

What’s the meaning on Constructive Interface?

A

Crest + Crest
Or
Trough + trough
Waves gets bigger

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13
Q

In an earthquake, which seismic wave travels the slowest?

A

L-wave

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14
Q

Sound waves are…

A

Slower than radio waves

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15
Q

What’s the meaning of Destructive Interference?

A

Crest hits trough, no wave is seen

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16
Q

Light waves, such as walker talkie radio waves are…

A

Transverse

17
Q

Def of diffraction

A

Bending of waves around objects in their path

18
Q

Def of refraction

A

Change in direction of light rays when passing from 1 medium to another.

19
Q

Another word for amplitude of sound is…

A

Volume

20
Q

The Richter scale is a measure of the size of…

A

Seismic waves

21
Q

A transfer of energy through a material substance (or medium) is called…

A

A transmission

22
Q

The trough is

A

The low point of wave

23
Q

What is the reason for buying polarized sunglasses

A

Polarized sunglasses reduce the glare

24
Q

All waves travel…

A

At the speed of light

25
Q

A sonic boom occurs when…

A

An object travels faster than 340 m/s

26
Q

The range of human hearing is from 20Hz to 20,000 Hz. Frequencies above 20,000 Hz are…

A

Ultrasonic

27
Q

A node is…

A

A standing wave

28
Q

A linen is a measure of

A

Luminous flux

29
Q

Light waves move from air to glass. The light waves direction is changed as a result of…

A

Refraction

30
Q

Sound waves from a classroom bend around open doorways. This is a result of…

A

Diffraction

31
Q

A decibel (dB) is a measure of the…

A

Amplitude of sound

32
Q

Ultrasonic means…

A

Greater than the sound frequencies than humans can hear

33
Q

Supersonic means…

A

Greater than the speed of sound

34
Q

Transparent:

A

Material transmitting light without distorting direction of waves

35
Q

Translucent:

A

Materials transmitting light but distorting it’s path

36
Q

Opaque:

A

Not transmitting light

37
Q

Mach 3

A

3x the speed of SOUND

Physics (1 decks)

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