Across
- 5. The smallest quantity of an element. Made up of protons, neutrons, and electrons.
- 6. Transform chemical potential energy into electrical potential energy.
- 9. Property of some objects that causes them to exert forces on each other, by virtue of their having less (positive charge) or more (negative charge) electrons than usual.
- 10. The response or reaction produced by the system after processing information (e.g., movement, light, sound).
- 11. A material that does not conduct current well.
- 13. A circuit where all the objects are connected, with good contacts, so that current can complete a path from one battery terminal to another.
- 17. A circuit with only one path for current to flow
- 18. The measure of how much a material opposes the flow of charge. Measured in Ohms (Ω).
- 21. An automatically operated machine, programmable by a computer, designed to sense its environment, process information, and execute complex actions to perform tasks.
- 22. The flow of electric charge through a conductor.
- 24. The force of attraction between magnetic objects. Like poles repel, and unlike poles attract.
- 27. A circuit with a break in it – e.g. an open switch – so that current cannot complete its path.
- 28. A drawing of a circuit, made simple by the use of symbols. It uses straight lines to represent wires.
- 29. Any method (e.g. mechanical, electronic) used to turn the flow of charge on and off in a system (e.g. button, keyboard).
Down
- 1. A device that transforms electrical energy into kinetic energy (motion)
- 2. A magnet made from a current carrying coil of wire.
- 3. A circuit with more than one path for current to flow
- 4. A positively charged subatomic particle found in the nucleus of an atom.
- 7. A unit of measure of current.
- 8. Components used by robots to gather information from the environment.
- 12. A component made to restrict the flow of current.
- 14. A material that allows current to flow easily through it.
- 15. Senses or devices that collect data from the environment and transform it into signals (e.g., electrical signals) to be processed.
- 16. A very thin wire that heats up in a lamp causing it to glow.
- 19. A subatomic particle that is negatively charged.
- 20. A measure of the electric potential energy difference per charge passing through a component. Can be considered to be the electrical pressure.
- 23. The capacity to do work (make stuff happen). It cannot be created or destroyed, only transferred or transformed when something happens.
- 25. The small positive region at the centre of an atom that contains protons and neutrons.
- 26. A collection of objects, e.g. a battery and wires, connected to make a current.
