Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 683 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) wet hair is magnetic (d) water adds charge
2. 2.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) turmeric powder
4. 4.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it hardly works (c) it lights up (d) it becomes a magnet
5. 5.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a steel spoon (c) tiny paper bits (d) a brick
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a pebble
8. 8.🧺 Which of these is needed for the static comb? (a) a balloon (b) a mirror (c) a magnet (d) yeast
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) False (b) True
10. 10.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
11. 11.🧺 Which of these is needed for the static comb? (a) dry hair (b) a battery cell (c) a mirror (d) vinegar
12. 12.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) True (b) False
13. 13.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed plastic comb (c) a rubbed balloon (d) plug points at home
14. 14.⚡ Which of these jumps to a charged comb? (a) a pebble (b) puffed rice (c) a steel spoon (d) a heavy book
15. 15.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
16. 16.True or false: a battery cell is needed for the static comb. (a) True (b) False
17. 17.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
18. 18.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
19. 19.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) indoors (c) under a tall tree (d) on a rooftop
20. 20.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it falls straight down (c) it sticks for a while (d) it bursts at once
21. 21.True or false: vinegar is not needed for the static comb. (a) False (b) True
22. 22.True or false: a balloon is not needed for the static comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) dry hair (d) a steel spoon
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) True (b) False
25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
26. 26.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a heavy book (c) tiny paper bits (d) dry hair
27. 27.🧺 Which of these is not needed for the static comb? (a) a balloon (b) dry hair (c) a plastic comb (d) a battery cell
28. 28.True or false: yeast is needed for the static comb. (a) False (b) True
29. 29.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
30. 30.True or false: thermocol bits jumps to a charged comb. (a) False (b) True
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.🔍 Which is the odd one out? (a) a thin water stream (b) a heavy book (c) dry hair (d) thermocol bits
33. 33.True or false: dry hair does not move to a charged comb. (a) False (b) True
34. 34.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) nothing at all (d) the stream bends
35. 35.True or false: a magnet is needed for the static comb. (a) False (b) True
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is kept the same. (a) True (b) False
37. 37.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a steel spoon (d) a pebble
39. 39.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
40. 40.🧺 Which of these is not needed for the static comb? (a) dry hair (b) a mirror (c) a balloon (d) a plastic comb

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