Physic equations Flashcards
1
Q
What links SUVT?
A
s = (u+v)t/2
2
Q
What links UVAT?
A
V = u +at
3
Q
What links SUAT?
A
S = ut +1/2at^2
4
Q
What links SUVA?
A
V^2 = u^2 + 2as
5
Q
What equations link force, mass and acceleration
A
F = ma
6
Q
What links gravitational strength, force and mass?
A
g = F/m
7
Q
What links weight, mass and gravitational strength?
A
W =mg
8
Q
What links moments, force and distance?
A
Moment of force = Force x perp. distance from pivot
9
Q
What links momentum, mass and velocity/
A
Momentum = mv
10
Q
What links work done, force and displacment?
A
W = Fs
11
Q
What links Ke, mass and velocity?
A
Ke = 1/2 mv^2
12
Q
What links GPE, mass, gravitational strength and height?
A
GPE = mgh
13
Q
What links power, energy and time?
A
P = E/t
14
Q
What links power, work and time?
A
P = W/t
15
Q
What links voltage, energy and charge?
A
V = E/Q - definition of voltage
16
Q
What links resistance, voltage and current?
A
R = V/I - definition of resistance
17
Q
What links power, voltage and current?
A
P = IV
18
Q
What links power, current and resistance?
A
P = I^2R
19
Q
What links power, voltage and resistance?
A
P = V^2/R
20
Q
What links energy and work/
A
E = W
21
Q
What links energy, current, time and voltage?
A
E = ItV
22
Q
What links resistance, resistivity, current and area?
A
R = ρL/A
23
Q
What links current, charge and time?
A
I = Q/t - definition of current
24
Q
What links current, charge density, charge, drift velocity and area?
A
I = nAve
25
What links density, mass and volume?
ρ = m/v
26
What links force, viscosity, radius and velocity
F = 6πηrv - Stoke's law
27
What links force, spring constant and extension?
F = kx - Hooke's law
28
What links efficiency and energy?
Efficiency = useful E output/total E input x 100
29
What links efficiency and power?
Efficiency = useful Power output/total Power input x 100
30
What links pressure, force and area?
P = F/A
31
What links young modulus, stress and strain?
E = σ/ε
32
What links stress, force and area?
σ = F/A
33
What links strain, extension and length?
ε = x/L
34
What links elastic strain energy, force and extension?
E = 1/2Fx
35
What links elastic strain energy, spring constant and extension?
E = 1/2kx^2
36
What links wave speed, wavelength and frequency?
v = f λ
37
What links speed of wave of transverse wave on a string, tension and unit length?
v = √(T/μ)
38
What intensity, power and area?
I = P/A
39
What links power and focal length?
P = 1/f
40
What links power of multiple lens'?
PT= P1 + P2 + P3
41
What links object distance, image distance and focal length/
1/u + 1/v = 1/f
42
What links magnification, image height and object height?
magnification = Image height/Object height m =v/u
43
What links the distance between slits, wavelength and the angle from the normal?
nλ = dsinθ
44
What links refractive index of two substnaces?
n1sinθ1 = n2sinθ2
45
What links refractive index, speed of light and speed in substance?
n = c/v
46
What links critical angle and refractive index?
n = 1/sinC
47
What links energy, planck's constant and frequency?
E = hf
48
What links planck's constant, frequency, work function and Ke
hf = Φ + Ke_max
49
What links de broglie wavelength, planck's constant and momentum
λ = h/p
50
What links impulse, force, time and momentum?
Impulse = FΔt = Δp
51
What links Ke, momentum and mass?
Ke = p^2/2m
52
What links velocity, angular velocity and radius?
v = ωr
53
What links time period and angular velocity?
ω = 2π/T
54
What links force, mass, velocity and radius?
F = mv^2/r = ma
55
What links acceleration, velocity and radius?
a = v^2/r
56
What links acceleration, radius and angular velocity?
a = rω^2
57
What links force, mass, radius and angular velocity?
F = mrω^2
58
What links force, charges in the field and radius?
F = k QQ/r^2 - coloumb's law
59
What links Electric field strength, force and charge?
E = F/Q
60
What links Electric field strength, charge and radius?
E = k Q/r^2
61
What links electric potential, charge and radius?
V = k Q/r
62
What links capacitance, voltage and charge?
Q = VC
63
What links energy stored in a capacitor, charge and voltage?
W = 1/2QV
64
What links energy stored in a capacitor, capacitance and voltage?
W = 1/2CV^2
65
What links energy stored in a capacitor, charge and capacitance?
W = 1/2Q^2/C
66
What links charge on a capacitor, initial charge, time, resistance and capacitance? Graphical rearrangement?
Q = Q0 e^-t/RC - capacitor discharge. lnQ = lnQ0 - t/RC
67
What links current on a capacitor, initial current, time, resistance and capacitance? Graphical rearrangement?
I = I0 e^-t/RC. ln I = ln I0 - t/RC
68
What links voltage on a capacitor, initial voltage, time, resistance and capacitance? Graphical rearrangement?
V =V0 e^-t/RC. ln V = ln V0 - t/RC
69
What links force, magnetic flux density, current and length?
F = BiL sinθ
70
What links force, magnetic flux density, charge and velocity?
F = Bqv sinθ
71
What links magnetic flux, magnetic flux density and area?
Φ = BA cosθ
72
What equation links emf, flux linkage and time?
ℰ = -d(NΦ)/dt
73
What equation links energy, mass, specific heat capacity and temp change?
E = mcΔt
74
What equation links energy, specific latent heat and mass?
E = LΔm
75
What links Ke, mass, velocity
Ke = 1/2mv^2
76
What links root mean squared voltage, peak voltage?
Vrms = Vpeak/√2
77
What links root mean squared current and peak current
I rms = I peak/√2
78
What links power, peak current, peak voltage?
Power = Vpeak/√2 x I peak/√2 = (Vpeak I peak)/2
79
What links force, masses in a field, radius and gravitational constant?
F =Gmm/r^2
80
What links gravitational field strength, gravitational constant, mass and radius?
g = Gm/r^2
81
What links gravitational potential, gravitational constant, mass and radius?
Vgrav = -GM/r
82
What links force, spring constant and distance?
F = -kx
83
What links acceleration, angular velocity, displacement?
a = -ω^2x
84
What links displacement, amplitude, angular velocity and time?
x = Acos ωt
85
What links velocity, amplitude, angular velocity and time?
v = -Aω sin ωt
86
What links acceleration, angular velocity, amplitude and time?
a = -Aω^2 cos ωt
87
What links time period and frequency?
T = 1/f
88
What links angular velocity, frequency?
ω = 2πf
89
What links time period, mass and spring constant?
T = 2π √m/k
90
What links Time period, length and g
T = 2π √l/g
91
What links Amplitude, Wavelength and time?
A = A0 e^-λt
