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PHYSICS 6 - MAGNETS Teacher resources Guidance notes Coverage NC KS3 2007: 3.1 Energy, electricity and forces (b) forces are interactions between objects and can affect their shape and motion (c) electric currents in circuits can produce a variety of effects. Prior knowledge Unit 2: Forces appear whenever two objects interact. Unit 2: Unbalanced forces cause the motion of a body to change. Literacy starter Word Grid 1 with Think Aloud Challenge Data handling Interpreting measurements especially relating to the drawing of magnetic field lines and drawing conclusions about field strength. Contexts Magnets in credit card strips, fridge magnets and doors, compasses, hard disk drives, loudspeakers and headphones, motors and generators. Electromagnets in recycling, scrap metal processing, buzzers. Related resources Multiple choice question bank: Physics 6 Magnets Pre-test and Levels 3 to 7 tests. Structured questions: Physics 6 Magnets, five exam-style questions plus marking guide and progress escalator. Controlled assessment: Making a magnet plus marking guide. Progression ALL students should (levels 3–4): Recognise magnetism as a property and know some magnetic and non-magnetic materials. Know that magnets come with two poles – north and south. Describe simple interactions of magnets and correctly use the terms apply, repel. MOST students should (levels 5–6): Understand the difference between permanent and temporary magnets. Recognise the properties of a magnetic field and be able to draw basic field lines for permanent magnets. Explain how an electromagnet works and how its strength is controlled. SOME students will (levels 6–7): Explain the process by which a temporary magnet can be created. Interpret magnetic field lines including how stronger fields are shown, and how lines do not cross. Make the links in behaviour between magnetic poles and electric charges. Explain uses of electromagnets such as sorting steel from aluminium, and extrapolate to suggest further uses. Smart Science Key Stage 3