Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 375 · 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.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
2. 2.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
3. 3.True or false: to climb an electric pole is safe. (a) True (b) False
4. 4.Which of these is safe? (a) touch a switch when wet (b) climb an electric pole (c) throw cells in a fire (d) build with an adult near
5. 5.True or false: to use a cable with cuts is not safe. (a) False (b) True
6. 6.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a fuse or MCB (d) a plug top
7. 7.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) use mains for a project (d) keep drinks far away
8. 8.Which of these is safe? (a) fly a kite near wires (b) open a phone charger (c) poke things in a socket (d) dry your hands first
9. 9.True or false: to dry your hands first is safe. (a) True (b) False
10. 10.Which of these is safe? (a) stop if a part gets hot (b) use a cable with cuts (c) use mains for a project (d) fly a kite near wires
11. 11.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) nobody (c) a stranger online (d) a trusted adult
12. 12.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
13. 13.🔍 Which is the odd one out? (a) stay away from pylons (b) use a cable with cuts (c) use small battery cells (d) build with an adult near
14. 14.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
15. 15.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
16. 16.🔍 Which is the odd one out? (a) stop if a part gets hot (b) touch a switch when wet (c) open a phone charger (d) use mains for a project
17. 17.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 12 V (c) 9 V (d) 1.5 V
18. 18.True or false: to use a cable with cuts is safe. (a) True (b) False
19. 19.Which of these is safe? (a) use small battery cells (b) open a phone charger (c) fly a kite near wires (d) use a cable with cuts
20. 20.🔍 Which is the odd one out? (a) throw cells in a fire (b) touch a switch when wet (c) take cells out after use (d) poke things in a socket
21. 21.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) a wall socket (d) an inverter socket
22. 22.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) fly a kite near wires (d) stay away from pylons
23. 23.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
24. 24.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
25. 25.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
26. 26.Which of these is not safe? (a) build with an adult near (b) touch a fallen wire (c) take cells out after use (d) dry your hands first
27. 27.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
28. 28.Which of these is safe? (a) use mains for a project (b) open a phone charger (c) touch a switch when wet (d) take cells out after use
29. 29.True or false: to touch a fallen wire is safe. (a) False (b) True
30. 30.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) climb an electric pole (d) keep drinks far away
31. 31.True or false: to dry your hands first is not safe. (a) False (b) True
32. 32.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water makes it cold (c) it spoils the paint (d) water carries current
33. 33.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) touch a switch when wet (d) use small battery cells
34. 34.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) throw cells in a fire (d) keep drinks far away
35. 35.True or false: to fly a kite near wires is safe. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) fly kites in open fields (d) climb an electric pole
37. 37.🔍 Which is the odd one out? (a) fly a kite near wires (b) build with an adult near (c) keep drinks far away (d) stop if a part gets hot
38. 38.Which of these is not safe? (a) build with an adult near (b) use small battery cells (c) climb an electric pole (d) fly kites in open fields
39. 39.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
40. 40.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe

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