Physics Equations and Units Flashcards
What is the formula for kinetic energy?
Ek = 1/2mv²
Ek = Kinetic Energy - J m = Mass - Kg v = Speed - m/s
What is the formula for Elastic Potential Energy
Ee = 1/2ke²
Ee = Elastic Potential Energy - J k = Spring Constant - N/m e = Extension - m
Formula linking Gravitational Potential Energy, Mass, Gravitational Field Strength, and Height?
Ep = mgh
Ep = Gravitational Potential Energy - J m = Mass - Kg g = Gravitational Field Strength - N/kg h = Height - m
(GFS on Earth is 9.81N/kg)
Formula linking Change in Thermal Energy
∆E = mc∆(Theta)
∆E = Change in Thermal Energy - J m = Mass - Kg c = Specific Heat Capacity - J/kg°C ∆(Theta) = Change in Temperature - °C
What is the formula for Power?
P = E/T
P = Power - W (Watts) E = Energy - J T = Time - S
What is another formula for power linked with work done?
P = W/T
P = Power - W (Watts) W = Work Done -J T = Time - S
Formula linking Power, Potential Difference, and Current?
P = VI
P = Power - W V = Potential Difference - V I = Current - A
Formula linking Power, Current, and Resistance?
P = I²R
P = Power - W I = Current - A R = Resistance - Ohms
Formula linking Energy, Power, and Time?
E = PT
E = Energy - J P = Power - W T = Time - s
Formula linking Efficiency, Useful Energy Out, and Total Energy In?
Efficiency = Useful Energy Out / Total Energy In
Formula linking Charge, Current, and Time?
Q = IT
Q = Charge - C (Coulombs) I = Current - A T = Time - S
Formula linking Potential Difference, Resistance, and Current?
V = IR
V = Potential Difference - V I = Current - A R = Resistance - Ohms
Formula linking Energy, Charge, and Potential Difference?
E = QV
E = Energy - J Q = Charge - C (Coulombs) V = Potential Difference - V
Formula linking Density, Mass, and Volume?
P = m/v
P = Density - kg/m³ OR g/dm³ OR g/cm³ m = Mass - kg OR g v = Volume - m³ OR dm³ OR cm³
Formula linking Energy, Mass, and Specific Latent Heat?
E = mL
E = Energy - J m = Mass - kg L = Specific Latent Heat - J/kg
Formula linking Weight, Mass, and Gravitational Field Strength?
W = mg
W = Weight - N
m = Mass - kg
g - GFS - N/Kg
Formula linking Work Done, Force, and Distance?
W = Fs
W = Work Done - J F = Force - N s = Distance - m
Formula linking Force Spring Constant, and Extension?
F = Ke
F = Force - N K = Spring Constant - N/m e = Extension - m
Formula linking Distance, Speed, and Time?
S = VT
S = Distance - m V = Speed - m/s T = Time - s
Formula linking Acceleration, ∆Velocity, and Time?
a = ∆V / T
a = Acceleration - m/s² ∆v = Change in Velocity - m/s t = Time - s
Formula linking Final Velocity, Initial Velocity, Acceleration, and Distance?
v² - u² = 2as
v = Final Velocity - m/s u = Initial Velocity - m/s a = Acceleration - m/s² s = Distance - m
Formula linking Force, Mass, and Acceleration?
F = Ma
F = Force - N M = Mass - kg a = Acceleration - m/s²
Formula linking Momentum, Mass, and Velocity?
P = mv
P = Momentum - kg m/s m = Mass - kg v = Velocity - m/s
Formula linking Period and Frequency?
Period = 1 / Frequency
Period - S
Frequency - Hz
Formula linking Velocity, Frequency, and Wavelength?
V = (Lambda) F
V = Velocity - m/s Lambda = Wavelength - m F = Frequency - Hz
Formula linking Magnetic Flux Density, Force, Current, and Length?
F = BIL
F = Force - N B = Magnetic Flux Density - T (Tesla) I = Current - A L = Length of wire - m
Formula linking Electrostatic Force, Constant, Charge 1 Charge 2, and Distance?
(idk if we need this lmfao so dont worry about this one)
Electrostatic force = Constant × ((Charge 1 × Charge 2) / Distance²)
Name all the formula for power
P = I²R P = VI P = W/T P = E/T
What is I?
current
What is the unit for current?
amps CHARGE PER SECOND
What is the unit for voltage?
volts JOULES PER COLOUMB
What is the unit for charge?
coloumbs
What is the unit for energy?
joules
What is c?
specific heat capacity?
What are the units for specific heat capacity?
J/KG
What is charge?
the rate of flow of electrical charge
What is specific latent heat?
The amount of energy per kg
Unit of gravitational field strength?
N/Kg
