Table of Contents

Energy KS3A Ideas you need from Key Stage 3: How heat (thermal energy) is transferred; Electricity 1: Transferring energy through space; Energy 2: Reducing the thermal energy loss from buildings; Energy 3: How soon will it pay for itself?; Energy 4: Using the Sun’s energy to heat your home; Energy 5: Making use of electricity; Energy 6: How much electricity do we use?; Energy 7: Paying for electricity; Energy 8: Lifting things with electricity; Energy 9: Measuring power and energy; Energy 10: Energy where you want it; Energy 11: Energy of the sort you want; 12: What happens to all the wasted energy?; Energy KS3B Ideas you need from Key Stage 3: Energy to make electricity; Energy 13: Using fuels to generate electricity; Energy 14: Comparing fuels for electricity; Energy 15: Generating electricity with water; Energy 16: Generating electricity with wind; Energy 17: Generating electricity from the Sun and the Earth; Energy 18: A review of renewable energy sources; Energy 19: Making electricity generation more efficient; Energy H1: Explaining conduction, convection and radiation; Energy H2 This extends Energy 18 for Higher Tier students: How should we generate our electricity?; Energy H3: Matching electricity supply and demand; Electricity 1: Are you a conductor or an insulator?; Electricity 2: Wiring a three-pin plug; Electricity 3: Some ‘do’s’ and ‘don’ts’ that could save your life; Electricity 4: Why do plugs have fuses?; Electricity 5: V/a.c./d.c./Hz What do they all mean?; Electricity 6: Why is mains electricity a.c.? Why is it 230 volts?; Electricity KS3A Ideas you need from Key Stage 3: Magnets and electromagnets; Electricity 7: How to make a magnet move a copper wire; Electricity 8: Two important electrical devices; Electricity 9: Electricity that can make your hair stand on end; Electricity 10: Why rubbing things together produces electricity; Electricity 11: Making use of static electricity; Electricity 12: Danger from sparks; Electricity 13: How to produce an electric current; Electricity KS3B Ideas you need from Key Stage 3: Making a current flow; Electricity 14: Circuit diagrams; Electricity 15: Energy transfer in circuits; Electricity 16: How many ‘batteries’ do I need?; Electricity 17: Connecting several things to the same supply; Electricity 18: Different ways of connecting things in circuits; Electricity 19: How does current change with voltage?; Electricity 20: Measuring resistance; Electricity 21: Resistances that change; Electricity 22: Using electricity to split things up; Electricity H1 This extends Electricity 1 for Higher Tier students: Why metals conduct electricity; Electricity H2 This extends Electricity 6 and 13 for Higher Tier students: More about generators; Electricity H3 This extends Electricity 6 and 13 for Higher Tier students: How transformers work; Electricity H4 This extends Electricity 22 for Higher Tier students: A closer look at electrolysis; Electricity H5 This extends Electricity 15 and H4 for Higher Tier students: A closer look at voltage; Electricity H6 This extends Electricity H3 for Higher Tier students: Transmitting mains electricity efficiently; KS3A Ideas you need from Key Stage 3: Reflection and refraction; Waves and radiation 1: Why do people say that light and sound are waves?; Waves and radiation 2: Looking at water waves: Part 1; Waves and radiation 3: Looking at water waves: Part 2; Waves and radiation 4: Two types of wave; Waves and radiation 5: Looking at sound waves; Waves and radiation 6: ’Sound’ you can’t hear; KS3B Ideas you need from Key Stage 3: Why are there different colours of light?; Waves and radiation 7: Waves beyond the ends of the rainbow; Waves and radiation 8: What happens when electromagnetic waves hit things?; Waves and radiation 9: How a doctor can see inside your stomach; Waves and radiation 10: Waves bending round corners; Waves and radiation 11: Using gamma (?) radiation; Waves and radiation 12: Using X-rays; Waves and radiation 13: Using ultraviolet (UV) radiation; Waves and radiation 14: Using infrared (IR) radiation; Waves and radiation 15: Using microwaves; Waves and radiation 16: Using radio waves; Waves and radiation 17: Why is everything going digital?; Waves and radiation 18: Radiation that harms your body; Waves and radiation 19: How much harmful radiation do you get?; Waves and radiation 20: How safe are mobile phones?; Waves and radiation 21: Investigating radioactive substances; Waves and radiation 22: Alpha, beta, gamma: which is most dangerous?; Waves and radiation 24: How fast do radioactive substances decay?; Waves and radiation 24: Using radioactive substances safely; Waves and radiation 25: What are atoms made of?; Waves and radiation 26: Why are some atoms radioactive?; Waves and radiation H1 This extends Waves and radiation 4 for Higher Tier students: Looking inside the Earth; Waves and radiation H2 This extends Waves and radiation 6 for Higher Tier students: Using ultrasound to detect flaws; Waves and radiation H3 This extends Waves and radiation 17 for Higher Tier students: Why digital signals don’t deteriorate; Waves and radiation H4 This extends Waves and radiation 23 and 24 for Higher Tier students: More ways of using radioactive materials; Waves and radiation H5 This extends Waves and radiation 22 and 26 for Higher Tier students: A closer look at radioactive decay; Forces 1: What makes things stand still; Forces 2: Why do objects slow down?; Forces KS3A Ideas you need from Key Stage 3: Taking the rough with the smooth; Forces 3: Stop that car!; Force 4: Travelling at speed; Forces KS3B Ideas you need from Key Stage 3: The light of day, the dark of night; KS3C Ideas you need from Key Stage 3: Patterns in the sky; Forces 5: Distant suns; KS3D Ideas you need from Key Stage 3: Why do planets look like stars?; Forces 6: Why do the planets orbit the Sun?; Forces 7: Satellites; Forces 8: More about orbits; Forces 9: The Universe; Forces 10: Is there life elsewhere in the Universe?; Forces 11: SETI – the search for extra-terrestrial intelligence; Forces 12: The life history of a star; Forces 13: Lose weiaht – become an astronaut; Forces 14: Acceleration helps to win races; Forces 15: Sport and transport – a lot of pushing and pulling; Forces 16: Speed limits; Forces 17: All in a day’s work; Forces H1: How did the Universe begin?; Forces H2: Second generation stars and black holes; Forces H3 This extends Forces 14 for Higher Tier students: More about speed and acceleration; Forces H4 This extends Forces 15 for Higher Tier students: Experiments in space; Forces H5 This extends Forces 17 for Higher Tier students: A closer look at kinetic energy