Across
- 5. serious injury or death caused by an electric current passing through the body
- 6. existing in limited quantities that cannot be replaced after they have all been used
- 7. a non-renewable energy source such as oil, coal or natural gas
- 9. the flow of 6.242 ×1018 electrons per second
- 10. a circuit in which there is only one path for the current to flow along
- 11. a measure of the ability to produce useful energy
- 12. a device that will self-destruct if the current gets too high, breaking the circuit
- 14. a device that will break the circuit if the current gets too high, without being destroyed
- 15. the output energy that a machine creates that is not useful; waste energy is often in the form of thermal energy and sound
- 19. causing little or no damage to the environment and therefore able to continue for a long time
- 20. the unit of resistance
- 23. a component – a resistance – of an electrical circuit that transforms energy
- 25. the energy that a machine or device provides or wastes
- 26. device a device that will break the circuit if any current leaks from a circuit, preventing electrocution
- 27. a circuit in which each component is connected in a separate conducting path
- 29. the degree to which a substance resists the flow of an electric current through it
- 31. thermal energy that originates from inside Earth
Down
- 1. the law that states there is a direct proportionality between the voltage applied across some conductors and the resultant electric current
- 2. a renewable source of energy harnessing the gravitational potential energy of water to generate electrical energy
- 3. energy that can be used for a specific purpose
- 4. a material through which current cannot flow easily
- 8. can be produced as quickly as it is used
- 13. the power source of a circuit
- 14. the unit of electric charge; the amount of charge transferred in 1 second with a current of 1 amp
- 16. a measure of stiffness in a spring or elastic. A higher value means more force is required to extend a spring a given length
- 17. earthed having an earth pin in a plug through which the electric current will flow to the ground in the case of a fault
- 18. a measurement of how much energy each charge carrier is given
- 21. the power source of a circuit
- 22. a material that allows electric current to flow easily
- 24. measures the voltage provided by the power supply or the voltage drop across components of the circuit
- 28. the energy that a machine or device uses as its source of energy
- 30. a device for measuring electric current