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Before heating: Ice and air present in the tin, the ice particles vibrate about fixed positions, they do not exert a pressure on the lid at this time, air particles inside the tin hit the lid but exert th...

A diode is an electrical component in a circuit. It only allows electricity to flow in one direction. It can be used to change a current from alternating to direct.

The fundamental unit of electricity is 'charge'. Each electron is slightly negatively charged and it is this movement of charge around a circuit which powers our appliances. The speed of the electrons/the...

Newtons First Law:An object at rest will stay at rest, and an object in motion will stay in constant motion unless acted upon by a resultant force
Newtons Second Law:F=ma
Newtons Third Law:If o...

Using the equation Q = mcT, where Q represents energy in Joules, m represents mass in kg, c represents specific heat capacity measure in joules kg^-1 K^-1 and lastly, T represents the ...