Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 12 · 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.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) a mirror (d) dry hair
2. 2.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
3. 3.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
4. 4.⚡ A rubbed comb is held near puffed rice. What happens? (a) does not move (b) jumps to the comb
5. 5.True or false: puffed rice does not move to a charged comb. (a) False (b) True
6. 6.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
7. 7.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
8. 8.⚡ Which big natural spark is caused by static electricity? (a) dew (b) a rainbow (c) the wind (d) lightning
9. 9.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
10. 10.True or false: tiny paper bits is needed for the static comb. (a) False (b) True
11. 11.🧺 Do we need a plastic comb for the static comb? (a) needed (b) not needed
12. 12.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) the water stops (d) nothing at all
13. 13.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it lights up (d) it becomes a magnet
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) a battery cell (d) a plastic comb
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) distance to the paper
16. 16.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
17. 17.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is sticky (d) it is hot
18. 18.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) dry hair (d) a heavy book
19. 19.True or false: puffed rice jumps to a charged comb. (a) False (b) True
20. 20.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) paper bits picked up (c) the paper bit size (d) the same comb
21. 21.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a brick (c) dry hair (d) a thin water stream
22. 22.True or false: a pebble does not move to a charged comb. (a) False (b) True
23. 23.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a heavy book
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) dry hair (d) a mirror
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) True (b) False
27. 27.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
28. 28.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.⚖️ 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 change it (c) we measure it
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) True (b) False
32. 32.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) yeast (c) dry hair (d) a balloon
33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) vinegar
35. 35.True or false: a battery cell 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: paper bits picked up is kept the same. (a) False (b) True
37. 37.True or false: yeast is needed for the static comb. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) thermocol bits (d) dry hair
39. 39.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) dry hair (d) tiny paper bits
40. 40.🧺 Which of these is needed for the static comb? (a) a balloon (b) vinegar (c) a battery cell (d) a magnet

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