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Flashcards in Physics Deck (76):
1

Speed, distance, time

Speed = distance/time

2

Velocity, displacement, time

Velocity = displacement/time

3

Acceleration, velocity, time

Acceleration = delta(velocity)/time

4

Displacement, initial displacement, initial velocity, time, acceleration

x = x0 + v0*t + (1/2)a*t^2

5

Velocity, initial velocity, acceleration, time

v = v0 + at

6

Velocity, initial velocity, acceleration, displacement

v^2 = v0^2 + 2a*x

7

Force, mass, acceleration

F = ma

8

Force, gravitation constant, mass, radius

F = G(m1m2/r^2)

9

G (gravitation constant)

6.67 * 10^-11

10

Net force of inclined plane

mgsin(theta)

11

Centripetal acceleration, velocity, radius

ac = v^2/r

12

Centripetal force, mass, velocity, radius

Fc = (mv^2)/r

13

Static friction, coefficient of friction, force

fs

14

Kinetic friction, coefficient of friction, force

fk = MUk*Fn

15

Work, force, distance

W = Fd

16

Force, spring constant, change in position

F = -kx

17

Torque, force, length

T = Fl

18

Kinetic energy, mass, velocity

K = 1/2mv^2

19

Gravitational potential energy, mass, acceleration, height

Ug = mgh

20

Elastic potential energy, spring constant, displacement

Ue = 1/2kx^2

21

Work, force, distance

W = Fdcos(theta)

22

Work, kinetic energy, potential energy, frictional energy

W = delta(K) + delta(U) + delta (E)

23

Power, energy change, time

P = delta(E)/t

24

Instantaneous power, force, velocity

P = Fvcos(theta)

25

Momentum, mass, velocity

p = mv

26

Elastic collisions

Ui + Ki = Uf + Kf

27

Inelastic collisions

pi = pf, Ki = Kf

28

Impulse, momentum

J = delta(p)

29

Mass, velocity, force, time

delta(mv) = F(avg)delta(t)

30

Alpha decay

4 alpha
2

31

Beta decay

0 e
-1

32

Positron emission

0 e
1

33

Gamma ray

0 gamma
0

34

Rest mass energy, mass, speed of light

E = mc^2

35

Density, mass volume

p = m/V

36

Fluid pressure, force, area

P = F/A

37

Specific gravity

SG = psubstance/pwater

38

Fluid pressure, density, gravitational constant, height

P = pgy

39

Buoyant force

Fb = pVg

40

Flow rate, area, velocity

Q = Av

41

Bernoulli equation

K = P + pgh + 1/2pv^2

42

Fluid velocity, gravitational constant, height

v = sqrt(2gh)

43

Modulus of elasticity

stress/strain

44

Velocity, frequency, wavelength

v = f*lambda

45

Period, frequency

T = 1/f

46

Decibel

Beta = 10*log(I/Io)

47

Beat frequency

fbeat = |f1-f2|

48

Harmonic for closed system

L = (n*lambda)/2
*n = 1, 2, 3...

49

Harmonic for one open system

L = (n*lambda)/4
*n = 1, 3, 5...

50

Angular frequency, spring constant, mass (pendulum)

w = sqrt(k/m)

51

Angular frequency, gravitational constant, length of string (pendulum)

w = sqrt(g/L)

52

Doppler effect, frequency

(delta f / fs) = v/c

53

Doppler effect, wavelength

(delta lambda / lambda s) = v/c

54

Force, coulomb constant, charge, radius (point charge)

F = (kq1q2)/r^2

55

Energy, coulomb constant, charge, radius (point charge)

E = (k*q1)/r^2

56

Potential energy, coulomb constant, charge, radius (point charge)

U = (kq1q2)/r

57

Voltage, coulomb constant, charge, radius (point charge)

V = (kq1)/r

58

Force, energy, charge (constant electric field)

F = Eq

59

Voltage, Energy, distance (constant electric field)

V = Ed

60

Potential energy, energy, distance (constant electric field)

U = qEd

61

Potential energy, voltage, charge (constant electric field)

U = Vq

62

Voltage, current, resistance

V = iR

63

Resistors in series

Reff = R1 +R2 + ...

64

Resistors in parallel

(1/Reff) = (1/R1) + (1/R2) + ...

65

Capacitance, charge, voltage

C = Q/V

66

Power, current, voltage

P = iV

67

Power, current, resistance

P = i^2*R

68

Power, voltage, resistance

P = V^2/R

69

Capacitors in series

(1/Ceff) = (1/C1) + (1/C2) + ...

70

Capacitor in parallel

Ceff = C1 + C2 + ...

71

Potential energy, charge, voltage

U = 1/2 QV

72

Potential energy, charge, capacitance

U = 1/2 Q^2/C

73

Potential energy, capacitance, voltage

U = 1/2 CV^2

74

Alternating current, Vmax

Vmax = sqrt(2)*Vrms

75

Alternating current, imax

sqrt(2) irms

76

Magnetism

F = qvBsin(theta)