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31 Cards in this Set
- Front
- Back
Newton's First Law
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Object in motion will stay in motion
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Newton's Second Law
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F = ma
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Newton's Third Law
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For every action there is an opposite and equal reaction
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PEelastic = ?
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PEelastic = 1/2 k x^2
PEelastic = 1/2 *Spring constant * distance streached or compressed ^2 |
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Angular DIsplacement = ?
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dTheta = ds/r
dTheta = change in arc length / distance from axis of circle |
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Angular Velocity = ?
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w = dTheta/dTime
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Angular Acceleration = ?
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a = dw/dTime
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Tangential speed = ?
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v = rw
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Tangential acceleration = ?
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a(t) = ra
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Centripetal Acceleration
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a(c) = v^2/r
a(c) = rw^2 |
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Force of rotational motion = ?
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F = mv^2/r
F = mrw^2 |
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Boyancy
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F = mg
Boyant force = mass of fluid or object* acceleration due to gravity |
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Pressure as a function of Depth
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P = Po + pgh
P = Pressure (pascals) Po = atmospheric pressure (pascals) p = density of fluid (kg/m^3) g = acceleration due to gravity h = depth in meters |
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Work done on or by gas
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W = P dV
W = Work P = Pressure (pascals) dV = channge in volume (m^3) |
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Period of pendulum = ?
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T = 2PI(L/g)^(1/2)
T = period in seconds L = length of pendulum (meters) g = acceleration due to gravity |
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Wave speed = ?
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V = f lamda
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Sound Intensity
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Intensity = P / 4PI r2
P = power in watts r = distance from observer Intensity = watts/m^2 |
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Harmonics
f = ? |
Lowest frequency of vibration on a standing wave
f = n (v / 2L) f= frequency n = harmonic number (1, 2, 3,...) v = velocity of wave L = length of vibrating string |
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Harmonics Open ended pipe
f = ? |
f = n (v/2L)
f = frequency n = harmonic number (1,2,3,..) v = speed of sound l = length of vibrating air column |
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Harmonics closed ended pipe
f = ? |
f = n (v/4L)
n = (1,3,5,...) |
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Magnification of Image
M = ? |
M = h1/h2 = q/p
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Difraction
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D(sin theta) = m lamda
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Electric Potential Energy
PEelectric = ? |
PEelectric = (Kc)(Q)(q)/(r)
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Potential Difference
dV = ? |
dV = dPEelectric / q
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Capacitance
C = ? |
C = Q/ dV
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Potential Energy of a capacitor
PEelectric = ? |
PEelectic = 1/2 (Q dV)
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Current
I = |
I = dQ / dT
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Electric Power
P = ? |
P = I dV
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Potential Energy of a capacitor
PEelectric = ? |
PEelectic = 1/2 (Q dV)
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Current
I = |
I = dQ / dT
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Electric Power
P = ? |
P = I dV
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