Motion of small particles suspended in a liquid or gas, caused by molecular bombardment
Δenergy
Mass x specific heat capacity x Δtemperature
Evaporation vs Boiling
Boiling only happens at boiling point temp
Evaporation occurs at any temp
Boiling happens throughout the liquid
Evaporation only happens at the surface
Boiling = bubble, evaporation = no bubbles
Convection current
Transfer of thermal energy by the motion of a fluid
Specific heat capacity
The amount of energy needed to raise the temperature of 1kg by 1ºC
Temperature
Measure of the average kinetic energy of the individual particles
Conventional current
Direction positive charges would flow in a complete circuit, from the positive to negative terminals of a cell, and opposite to the direction that electrons flow
Internal energy
Total energy of all the particles
Thermal expansion
Increase in volume of a material when its temperature rises
transformer efficiency formula = (Vs / Vp) x 100
Relationship between voltage and number of coils
(Vp / Vs) = (Np / Ns)
100% transformer efficiency
(Vp x Ip) = Vs x Is)
Pp = Ps
E = VIt
E = Pt
An electric field is the region where an electric charge experiences a force.
