Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 330 · 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.True or false: a magnet is needed for the static comb. (a) True (b) False
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) dry hair (c) tiny paper bits (d) a balloon
3. 3.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
4. 4.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
5. 5.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
6. 6.True or false: a battery cell is needed for the static comb. (a) True (b) False
7. 7.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
8. 8.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it is sticky (c) it has static charge (d) it is hot
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) True (b) False
10. 10.⚡ Which of these jumps to a charged comb? (a) thermocol bits (b) a steel spoon (c) a brick (d) a heavy book
11. 11.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it turns into water (c) it sticks for a while (d) it falls straight down
12. 12.⚖️ 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
13. 13.True or false: a balloon is needed for the static comb. (a) False (b) True
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) a magnet
15. 15.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) magnetism (c) static electricity (d) gravity
16. 16.⚡ A rubbed comb is held near a brick. What happens? (a) does not move (b) jumps to the comb
17. 17.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a pebble (d) puffed rice
19. 19.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it lights up (c) it hardly works (d) it works better
20. 20.⚡ Which big natural spark is caused by static electricity? (a) a rainbow (b) the wind (c) dew (d) lightning
21. 21.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is what we measure. (a) False (b) True
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) yeast (d) a balloon
24. 24.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) distance to the paper (b) the same hair (c) number of rubs (d) the paper bit size
26. 26.True or false: a heavy book does not move to a charged comb. (a) True (b) False
27. 27.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) paper bits picked up (c) number of rubs
28. 28.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) a brick (d) a pebble
29. 29.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a balloon (d) a battery cell
31. 31.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
32. 32.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
33. 33.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the static comb? (a) a mirror (b) a battery cell (c) dry hair (d) yeast
36. 36.True or false: dry hair does not move to a charged comb. (a) True (b) False
37. 37.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) dry hair (d) a heavy book
38. 38.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) water adds charge (c) wet hair is magnetic (d) damp air leaks charge
39. 39.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
40. 40.🛟 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

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