Across
- 4. An instrument that measures current
- 8. Number of waves produced each second
- 10. An instrument used for measuring voltage
- 12. A lens that curves inwards
- 15. A small generator that spins its magnet instead of its coils.
- 16. A wire of high resistance, it will melt if too much current flows in the circuit.
- 17. Transfer of heat in a liquid or gas.
- 19. The bending of light as it passes from one substance to another.
- 21. A wave in which the vibration is in the same direction as the wave is travelling
- 23. A region of low pressure in which particles are far apart.
- 24. The unit that frequency is measured in
- 26. Electromagnetic radiation with a wavelength slightly longer than visible light, detected by our skin as heat.
- 28. Electromagnetic radiation with a wavelength shorter than visible light, contained in sunlight.
- 29. A measure of the amount of energy provided to charges, measured in Volts.
- 30. A circuit with all its components arranged in a line, forming a single loop.
Down
- 1. A wave in which the vibration is at right angles to the direction the wave is travelling.
- 2. A circuit that has a number of branches, each with its own components.
- 3. The entire range of frequencies of electromagnetic radiation, from radio waves to gamma rays.
- 5. Distance between two successive waves, measured in metres.
- 6. Movement of heat in the form of electromagnetic waves, which can travel through a vacuum.
- 7. The flow of charge, measured in Amps.
- 9. A method of heat transfer in which heat is passed by vibration of particles.
- 11. A narrow tube of glass or plastic used to transmit pulses of light
- 13. A region of high pressure in which particles are close together.
- 14. The maximum distance a wave extends beyond its middle position
- 18. The bouncing of light off something
- 20. The parts of an electrical circuit
- 22. Unit used to measure loudness
- 25. Uses electromagnetism to produce electricity, it needs a spinning coil and a magnet
- 27. A lens that curves outwards.