Across
- 1. what flows in an electric current when a battery is connected within the circuit.
- 5. a component that measures voltage.
- 6. information/data that can take any value, such as speed, so these values don’t need to be whole numbers.
- 14. the charge of how the energy is supplied to your home.
- 15. a material that lets energy flow through it easily.
- 18. the space around a magnet where it can affect magnetic materials or other magnets.
- 21. a way of saying how difficult it is for electricity to flow through something.
- 22. the amount of power used per hour.
- 23. a material or energy source that will not run out.
- 28. the amount of energy transferred by each unit of charge passing between two points of a circuit.
- 29. the way heat travels through solids.
- 33. the centre of an atom which consists of protons and neutrons.
- 34. push away.
- 35. a tiny particle found in the nucleus of an atom, with a positive charge.
- 36. a device that is operated electrically e.g. a kettle.
- 37. the smallest part of an element.
- 38. the build up of electrical charge within or on the surface of an insulated object.
- 39. the flow of electrons around a circuit
- 40. a resistor that can be adjusted to change the amount of resistance it has.
- 42. tiny particle that flows around a circuit.
- 43. the transfer of heat energy by waves.
- 44. two things pulling towards each other.
Down
- 2. a region where charges experience a force.
- 3. a force, such as magnetism or gravity, that does not need to be touching something to have an effect.
- 4. the amount of steady current through a large number of materials is directly proportional to the voltage across the materials and inversely proportional to the resistance.
- 7. a material that does not let energy flow through it easily.
- 8. any energy resource that will run out and we cannot renew our supplies of it (e.g. oil).
- 9. the transfer of heat in fluids.
- 10. a coil of wire with electricity flowing in it. An electromagnet has a magnetic field like a bar magnet.
- 11. the action of pushing forwards.
- 12. a way of saying how much energy is transferred by electricity.
- 13. large coil of wire with a magnet inside. When the magnet is turned, electricity is produced in the coil of wire.
- 16. a magnetized piece of metal that can swing around – it points north.
- 17. a coil of wire.
- 19. the iron part of a relay that moves when electricity is flowing in the solenoid (or electromagnet).
- 20. the number of joules of energy an appliance transfers every second.
- 21. if an investigation is repeated by another person or by using different equipment, the same results are obtained.
- 24. a tiny particle that forms the central nucleus of an atom.
- 25. the ends of a magnet – north pole and south pole.
- 26. the amount you pay for every unit of energy you use, measured in kWh.
- 27. materials that conduct heat or electricity poorly.
- 30. giving a material magnetic properties.
- 31. to rise up.
- 32. a factor which can change or be changed in an experiment.
- 36. a piece of equipment that measures how much electricity is flowing around a circuit.
- 41. a circuit where there is only one loop of wire.