Foundations of physics

• Sl base units are standard units used to describe physical quantities in physics 
• Candela (Cd) is the Sl unit for luminous intensity
• Mole (Mol) is the Sl unit for chemical mass
•  Metre (m) is the Sl unit for distance
• Kelvin (K) is the Sl unit for temperature
• Kilogram (Kg) is the Sl unit for mass
• Second (s) is the Sl unit for time
• Ampere (A) is the Sl unit for current 
• Peta (P) multiplies the unit by 10^15
• Tera (T) multiplies the unit by 10^12
• Giga (G) multiplies the unit by 10^9
• Mega (M) multiplies the unit by 10^6
• Kilo (K) multiplies the unit by 10^3
• Deci (d) multiplies the unit by 10^-1
• Centi (c) multiplies the unit by 10^-2
• Milli (m) multiplies the unit by 10^-3
• Micro (μ) multiplies the unit by 10^-6
• Nano (n) multiplies the unit by 10^-9
• Pico (p) multiplies the unit by 10^-12
• Femto (f) multiplies the unit by 10^-15
• Temp(K)= 273 + T(C)
• T(C) = T(K) - 273
• Potential difference is the work done per unit charge
• Scalars have a magnitude but no direction
• Vectors are quantities that have both magnitude and direction
• Vectors have a magnitude and a direction
• Resultant vector is the result of adding together two or more vectors
• Energy, work and heat are written at kgm^2s^-2
• To reduce the percentage uncertainty have a low absolute uncertainty or measure a large quantity
• Equation for percentage uncertainty

  
• Derived units of a Newton:

  $N =$$kgms^-2$
• Derived units for Power (W):

  $W =$$kgm^2s^-3$
• Derived units for Energy (J):

  $J=$$kgm^2s^-2$