Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 719 · 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 rubbed comb pull the paper bits? (a) it is hot (b) it is sticky (c) it has static charge (d) it is a magnet
2. 2.⚖️ 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
3. 3.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) puffed rice (d) a heavy book
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: tiny paper bits jumps to a charged comb. (a) False (b) True
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) True (b) False
7. 7.True or false: dry hair is not needed for the static comb. (a) True (b) False
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
11. 11.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
12. 12.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
13. 13.True or false: turmeric powder is needed for the static comb. (a) True (b) False
14. 14.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
15. 15.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
16. 16.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) dry hair (d) vinegar
17. 17.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) a battery cell (c) a balloon (d) a plastic comb
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the same comb (b) paper bits picked up (c) number of rubs (d) distance to the paper
19. 19.True or false: dry hair does not move to a charged comb. (a) False (b) True
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a plastic comb (d) tiny paper bits
21. 21.True or false: puffed rice does not move to a charged comb. (a) True (b) False
22. 22.⚖️ 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
23. 23.⚖️ 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) number of rubs (c) the paper bit size (d) the same hair
24. 24.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) vinegar (d) a plastic comb
25. 25.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) thermocol bits (d) a heavy book
26. 26.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) they turn blue (c) nothing happens (d) the bits jump to it
27. 27.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it falls straight down (c) it turns into water (d) it sticks for a while
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.⚡ Which big natural spark is caused by static electricity? (a) dew (b) the wind (c) lightning (d) a rainbow
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.True or false: a magnet is needed for the static comb. (a) False (b) True
33. 33.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) plug points at home (c) a rubbed plastic comb (d) a rubbed balloon
34. 34.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the static comb? (a) a battery cell (b) dry hair (c) vinegar (d) turmeric powder
36. 36.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
37. 37.🧺 Which of these is needed for the static comb? (a) tiny paper bits (b) vinegar (c) a battery cell (d) a magnet
38. 38.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a pebble (c) a heavy book (d) a steel spoon
39. 39.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a thin water stream (b) a steel spoon (c) tiny paper bits (d) thermocol bits

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