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Physics Flashcards

1
Q

Wavelength of fixed end standing wave

A

λ=2/n L(ength)

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2
Q

Wavelength of first harmonic free end standing wave

A

λ=4L (draw it out)

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3
Q

Wavelength of free end standing wave

A

λ=4/n L

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4
Q

P = ΔE/Δt

A

Power

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5
Q

Δp=FnetΔt

A

Impulse

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6
Q

nx = c/vx

A

Refractive Index

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7
Q

Q=mcΔT

A

Specific Heat Capacity

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8
Q

sinθc = n2/n1

A

Total Internal Reflection

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9
Q

F=qE

A

Force on a particle

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10
Q

P=VI

A

Power (Watts)

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11
Q

Speed of Light Through Refraction

A

n1v1=n2v2

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12
Q

Q/t = kAΔT/d

A

Heat Transfer/Thermal Conductivity

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13
Q

Latent Heat Energy

A

L = Q/M

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14
Q

Fixed end standing wave harmonic order

A

1st harmonic
2nd harmonic, 1st overtone
3rd harmonic, 2nd overtone

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15
Q

Free end standing wave harmonic order

A

1st harmonic
3rd harmonic, 1st overtone
5th harmonic, 2nd overtone

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16
Q

What does n represent in λ=2/n and λ=4/n?

A

N is the harmonic number

17
Q

Where are the nodes and antinodes of a standing wave?

A

Antinodes at crests and node where wave is stationary.

18
Q

Difference between progressive and standing waves?

A

Progressive waves propagate in a direction. Standing waves are caused by superposition of two or more progressive waves of the same frequency and do not propagate in any direction, hence they “stand”

19
Q

Inverse square law (calculating intensity)

A

I=P/4πR^2

20
Q

Inverse square law (intensity at two points)

A

I1 R1^2 = I2 R2^2

21
Q

Concave lens

A

Disperses light

22
Q

Hooke’s Law (Spring force)

A

F=kx
k is spring constant
x is spring extension in m

23
Q

Potential Islamic Energy

A

Uₚ=1/2kΔx^2
k = spring constant
x = spring extension
U = potential energy

m (7 decks)

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