Electricity Electromagnetism

WHERE HAVE YOU BEEN? At KS2 you learnt how to build circuits and how ELECTRICITY & MAGNETISM you can affect the brightness of bulbs in different circuits. You learnt how to use standard circuit symbols to represent parts of a circuit.

CIRCUITS: THE BASICS RESISTANCE & OHM’S LAW RESISTANCE OF A WIRE STATIC ELECTRICITY

ELECTRICITY Electricity is all around us--powering technology 7 like our mobile phones, computers and lights. POTENTIAL DIFFERENCE CURRENT SERIES & PARALLEL Even when you try to escape electricity, it’s still at work throughout nature, from the lightning in a CIRCUITS thunderstorm to the synapses inside our body. But what exactly is electricity? PERMANENT MAGNETS INVESTIGATING THE STRENGTH THE EARTH’S VS ELECTROMAGNETS OF ELECTROMAGNETS MAGNETIC FIELD POLES OF A MAGNET

ELECTROMAGNETISM Humans have been writing about magnetism since the 4th century BC – by observing the 8 world around us we have began to understand USING ELECTROMAGNETS MAKING AN MAGNETIC FIELDS more about the force of magnetism. There is ELECTROMAGNET an important relationship between electricity and magnetism that is key to us understanding CURRENT, RESISTANCE & how magnets are useful in our everyday lives. CIRCUIT There are many applications such as motors, SYMBOLS POTENTIAL DIFFERENCE RESISTORS loudspeakers, earphones, MRIs and even children’s toys.

ELECTRICITY 10 Electric charge is a fundamental property of matter. ELECTRIC CHARGE & RP: RESISTANCE RP: I-V Electrical power fills the modern world with artificial light and sound, information and entertainment, CURRENT CHARACTERISTICS remote sensing and control. How is electricity X3: STATIC ENERGY TRANSFERS controlled and how do we deliver it to the world? ELECTRICITY IN APPLIANCES MAINS ELECTRICITY

MAGNETISM & THE NATIONAL GRID POWER SERIES & PARALLEL ELECTROMAGNETISM CIRCUITS Electromagnetic effects are used in a wide variety of devices. Engineers make use of the fact that a magnet moving in a coil can EARTH’S THE MOTOR EFFECT / produce electric current and also that when MAGNETISM FLEMING’S LEFT HAND RULE X3: LOUDSPEAKERS current flows around a magnet it can produce X3: GENERATORS movement, vital to our electrical control of the 11 world around us.

MAGNETIC POLES & ELECTROMAGNETISM X3: MOTORS X3: INDUCTION & X3: TRANSFORMERS FIELDS MICROPHONES

CAREER OPTIONS RP = REQUIRED PRACTICAL Electrician / electrical engineer / electronic engineer / robotics technologist / computer X3 = TRIPLE hardware development KEY: HT = HIGHER TIER