Equation Symbols and Units Flashcards
What is the unit for energy?
Joules, J
What is the unit usually used for mass?
kilograms, kg
What is the unit for specific heat capacity?
J/kg°C
What is the unit for efficiency?
% or it doesn’t have one
What is power measured in?
Watts, W
What is time usually measured in?
seconds, s
Which unit do electricity suppliers use for energy?
kWh
What is the unit for speed?
m/s
What is the symbol for speed?
v
What is the symbol for frequency?
f
What is frequency measured in?
Hertz, Hz
What is the symbol for wavelength?
λ
What is wavelength measured in?
metres, m
What is the unit for force?
Newtons, N
What is the unit for acceleration?
Metres per second squared, m/s²
What is the symbol for acceleration?
a
What is the unit for velocity?
m/s
What is the unit for weight?
Newtons, N
What is the unit for gravitational field strength?
N/kg
What is the symbol for spring constant?
k
What is the unit for spring constant?
N/m
What is the unit for work done?
Joules, J
What is the gravitational field strength on earth?
10N/kg
What is the symbol for momentum?
p
What is the unit for momentum?
kg m/s
What is the symbol for current?
I
What is the unit for current?
Amps
What is the symbol for charge?
Q
What is the unit for charge?
Coulombs, C
What is the unit for potential difference?
Volts, V
What is the unit for resistance?
Ohms, Ω