Electricity and Magnetism Josh Kwiatkowski Grade 5 Science Mr. Marlow

Producing electric current By moving a coil of wire in a magnetic field, electricity Is produced from the wire Stronger magnets will produce a stronger electrical current Adding terns will also increase the electric current produced

Electricity It is the flow of electrons Also is a form of energy called electrical energy Atoms are made of three parts -neutron -proton -electron

Static electricity Positive charges are marked with a + Negative charges are marked with a – Most mater is neutral

Electric current It is the continuous flow of negative charges Electric circuit is the path on which negative charges flow A switch is a device that opens and closes a circuit

Series and parallel circuits A series circuit is a circuit with one path to flow on A parallel circuit is a circuit that has more than one path to flow on

Magnetism It is a magnet’s property of attracting materials Opposite poles attract and like poles repeal The north and south pole are seeking poles of a magnet

Two types of magnets Iron Temporary magnets are magnets that do not keep their magnetism for very long Permanent magnets are magnets that keep their magnetism for a long time Iron

A magnetic field is a space in which the force of a magnet can act The earth is a giant magnet A lodestone is a naturally magnetic rock found on or near the earth’s surface Force fields The lines of force is the diagram of the magnetic field of a magnet

Producing electric current A generator is a device that changes motion energy to electrical energy

Electric magnets A electromagnet is a magnet made when electric charges move through a coil of wires wrapped around an iron core It can be turned on and off Cranes, seprate different metals, computers, alarm bell, and electric motors have many uses

More about force fields A compass is a magnetized needle that is allowed to swing freely The needle is attracted to the earth’s magnetic north pole It is used to find direction

Electric safety Don’t use appliances with exposed cords Never stick your finger or any other object near or in an electric socket Don’t overload circuits Stay away from high voltage areas Never touch an appliance when your wet