Weight and Gravity The weight of an object is the force of gravity acting on it. It is calculated using the following formula: Weight (N)   =   Mass (kg)   x   g (N/kg or m/s2

First Law If no forces acts on an object or the forces on it are balanced then it will either remain at rest, or move with a constant velocity. One example is that of a book resting on a table. The w

Series Circuits Components are connected from end to end Total resistance is the product of all the resistances added together If one component is removed or disconnected the circuit is broken

Most materials fall into two groups: Conductors - allow electrons, and therefore a current, to flow through them. Insulators - do not conduct electricity An insulator may act as a store of

Electrostatic induction can be demonstrated using small pieces of paper and a polythene rod. The rod is negatively charged prior to the experiment by vigorously rubbing it with a cloth. It is then pla

This is the idea that magnetism can travel from one object to another even though they are insulated. An example of how magnetic induction is used is in transformers. Two coils of wire are wrapped aro

Charge The charge is the amount of electricity travelling through a circuit The symbol for charge is Q The unit for charge is coulombs A capacitor is a device that stores charge Charge (Q) =