Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 433 · 40 questions

Remember (Low, dry, with an adult): Never use mains sockets (about 230 V) for projects; never open chargers or poke into sockets. Water carries current: dry hands, no drinks near circuits, no switches when wet. Use small battery cells with an adult; stop if a part gets hot; keep away from fallen wires, poles and kites near power lines.

1. 1.True or false: to keep drinks far away is safe. (a) False (b) True
2. 2.Which of these is safe? (a) throw cells in a fire (b) open a phone charger (c) use mains for a project (d) take cells out after use
3. 3.🔍 Which is the odd one out? (a) touch a switch when wet (b) use mains for a project (c) stay away from pylons (d) open a phone charger
4. 4.Which of these is safe? (a) touch a fallen wire (b) keep drinks far away (c) throw cells in a fire (d) poke things in a socket
5. 5.🔍 Which is the odd one out? (a) stop if a part gets hot (b) climb an electric pole (c) use small battery cells (d) take cells out after use
6. 6.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) stay away from pylons (d) use a cable with cuts
7. 7.True or false: to dry your hands first is not safe. (a) True (b) False
8. 8.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
9. 9.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a wall socket (c) an inverter socket (d) a mains extension board
10. 10.True or false: to use small battery cells is safe. (a) True (b) False
11. 11.Which of these is safe? (a) stay away from pylons (b) touch a switch when wet (c) use a cable with cuts (d) throw cells in a fire
12. 12.🔍 Which is the odd one out? (a) use mains for a project (b) poke things in a socket (c) build with an adult near (d) fly a kite near wires
13. 13.🔍 Which is the odd one out? (a) open a phone charger (b) stop if a part gets hot (c) take cells out after use (d) fly kites in open fields
14. 14.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
15. 15.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
16. 16.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
17. 17.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
18. 18.Which of these is safe? (a) stop if a part gets hot (b) touch a fallen wire (c) poke things in a socket (d) fly a kite near wires
19. 19.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) a younger child (d) nobody
20. 20.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
21. 21.🔍 Which is the odd one out? (a) build with an adult near (b) stop if a part gets hot (c) keep drinks far away (d) touch a switch when wet
22. 22.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a parallel circuit (c) an open circuit (d) a short circuit
23. 23.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) throw cells in a fire (d) take cells out after use
24. 24.Which of these is not safe? (a) stay away from pylons (b) open a phone charger (c) stop if a part gets hot (d) take cells out after use
25. 25.🔍 Which is the odd one out? (a) poke things in a socket (b) fly a kite near wires (c) open a phone charger (d) take cells out after use
26. 26.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) wait and watch (d) shout for an adult
27. 27.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
28. 28.🔍 Which is the odd one out? (a) touch a fallen wire (b) throw cells in a fire (c) use small battery cells (d) open a phone charger
29. 29.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
30. 30.True or false: to use mains for a project is safe. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) keep drinks far away (b) stop if a part gets hot (c) poke things in a socket (d) stay away from pylons
32. 32.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
33. 33.🔍 Which is the odd one out? (a) use small battery cells (b) touch a fallen wire (c) stop if a part gets hot (d) keep drinks far away
34. 34.True or false: to keep drinks far away is not safe. (a) False (b) True
35. 35.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a plug top (d) a long wire
36. 36.Which of these is safe? (a) dry your hands first (b) touch a switch when wet (c) climb an electric pole (d) touch a fallen wire
37. 37.🔍 Which is the odd one out? (a) fly kites in open fields (b) fly a kite near wires (c) throw cells in a fire (d) poke things in a socket
38. 38.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it spoils the paint (c) water makes it cold (d) it is just untidy
39. 39.True or false: to climb an electric pole is safe. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) throw cells in a fire (b) use mains for a project (c) touch a switch when wet (d) stop if a part gets hot

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