Level 3 · Science S3.10

Electricity and magnetism

Current flows round circuits, and a current in a wire can make a magnet.

Measure current with an ammeter, see how cells add their push, compare series and parallel circuits, make a dimmer from pencil lead, charge a comb, map a magnetic field, build an electromagnet, and learn how to stay safe near mains electricity.

Start readingS3.10.1 Current in a circuit

8 chapters. Your place is kept on this device only.

You are ready for this book if

You can draw a circuit with a cell, a switch and a bulb using symbols.

Contents

  1. 1Current in a circuit, readunderstood
  2. 2Cells and voltage, readunderstood
  3. 3Series and parallel circuits, readunderstood
  4. 4Resistance, readunderstood
  5. 5Static electricity, readunderstood
  6. 6Magnetic fields, readunderstood
  7. 7Electromagnets, readunderstood
  8. 8Electricity safety at home, readunderstood

Keep it, print it, pass it on

For parents and teachers

For learners who can draw a circuit with symbols and do sums with the four operations. In many schools this fits children of about 11 to 13, and older learners can use it too. Activities use one or two small torch cells (1.5 V), a small torch bulb, foil or wire, a pencil, a plastic comb, paper, a magnet, a compass or a needle, an iron nail and thin insulated wire. Connect cells for only a few seconds, because wires and cells can get warm. No activity uses mains electricity, a car battery or a phone charger, and the last chapter has no hands-on electricity at all. A learner can work alone: every exercise has its answer and the reason for it.

Strand: Electricity and magnetism. Written and drawn by attnom. Free to read, print and share.