Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 526 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a magnet (b) a plastic comb (c) tiny paper bits (d) a balloon
2. 2.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
3. 3.⚡ Which of these jumps to a charged comb? (a) a brick (b) thermocol bits (c) a heavy book (d) a pebble
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) True (b) False
5. 5.🛟 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) plug points at home (d) a rubbed balloon
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is kept the same. (a) False (b) True
7. 7.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) distance to the paper (b) the same comb (c) the same hair (d) paper bits picked up
8. 8.⚡ Which of these does not move to a charged comb? (a) a brick (b) dry hair (c) a thin water stream (d) tiny paper bits
9. 9.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a battery cell (c) a balloon (d) a plastic comb
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) wet hair is magnetic (c) water adds charge (d) damp air leaks charge
12. 12.True or false: vinegar is not needed for the static comb. (a) False (b) True
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
16. 16.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) tiny paper bits (d) a heavy book
17. 17.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
18. 18.True or false: a brick jumps to a charged comb. (a) True (b) False
19. 19.🔮 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
20. 20.True or false: a pebble does not move to a charged comb. (a) False (b) True
21. 21.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the water stops (c) the stream bends (d) the water freezes
22. 22.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) turmeric powder (c) a plastic comb (d) a balloon
24. 24.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) tiny paper bits (d) vinegar
25. 25.⚡ Which of these does not move to a charged comb? (a) a pebble (b) a thin water stream (c) thermocol bits (d) puffed rice
26. 26.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) thermocol bits (d) a pebble
27. 27.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
28. 28.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) vinegar (d) a plastic comb
29. 29.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it works better (c) it hardly works (d) it becomes a magnet
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) False (b) True
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) True (b) False
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) puffed rice
34. 34.True or false: a mirror is not needed for the static comb. (a) False (b) True
35. 35.⚖️ 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
36. 36.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
37. 37.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
38. 38.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) yeast (c) dry hair (d) a balloon
40. 40.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb

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