Across
- 3. What heat-related injury could you get from touching the tip of a hot soldering iron?
- 6. Etching What process is used to reveal tracks on a circuit board using an etch resist pen?
- 11. What polarity is the shorter leg of an LED?
- 13. What conductive metal is commonly used for tracks on circuit boards?
- 14. To make tiny holes for the legs of the electrical components to stick through the circuit board we use a tiny ‘...........’
- 15. What is the meltable wire we use as metal ‘glue’ to stick electrical items together?
- 16. Dependent Resistor What type of resistor can adjust its resistance depending on light it senses and is abbreviated as an 'LDR'?
- 17. What polarity is the longer leg of an LED?
- 19. What is the unit of electrical resistance called?
- 20. What is electrical pressure measured in?
- 22. What is the term for the flow of electrical charge, measured in amps?
- 23. Circuit What is it called when electricity jumps along an unintended path and stops things working as intended?
- 24. What physical property is needed for electricity to travel easily through an object?
- 26. What is the property where a material resists the flow of electricity (or heat)?
- 28. What tool is used to measure voltage, resistance, and current in a circuit?
- 29. If you don’t leave your solder iron safely in the holder, the hot end might touch something and make it catch ‘..... ‘
Down
- 1. Electronic components are tiny and can be vulnerable to breaking easily. Things that can break easily can be described as ‘...................’
- 2. Board The copper-faced plate we fix our electronics to is called the; ‘................. ………’
- 4. What component stores electrical energy temporarily and can release it quickly?
- 5. Name for the clip on black and red wired component which attaches a 9v battery to the circuit board.
- 7. Emitting Diode What does LED stand for?
- 8. Water What should you run your hand under if you accidentally burn it?
- 9. iron What small powered tool is used to join components on a circuit board by melting metal wire?
- 10. What component limits the flow of current in a circuit?
- 12. The optical reason why resistors are color-coded rather than having tiny numbers printed on them? ‘For better ……………….’
- 18. Name the white, hole-gridded, hand-sized block used for testing circuits by inserting and removing electronic components.
- 21. What is the name for the lines of connections on a circuit board?
- 25. What is a common name for two or more power cells?
- 27. What do we measure electric current in?