Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 936 · 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.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) distance to the paper (c) number of rubs (d) paper bits picked up
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.True or false: tiny paper bits is needed for the static comb. (a) True (b) False
4. 4.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) tiny paper bits (c) vinegar (d) a battery cell
5. 5.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) a plastic comb (d) vinegar
6. 6.⚖️ 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 paper bit size (c) number of rubs
7. 7.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) dry hair (c) a heavy book (d) puffed rice
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
9. 9.⚖️ 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
10. 10.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) damp air leaks charge (c) wet hair is magnetic (d) dry days are noisy
11. 11.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
12. 12.⚖️ 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) number of rubs (c) the same comb
13. 13.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
14. 14.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
15. 15.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) a steel spoon (b) a brick (c) a heavy book (d) thermocol bits
17. 17.True or false: dry hair is needed for the static comb. (a) True (b) False
18. 18.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
19. 19.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a steel spoon (d) a pebble
21. 21.True or false: a magnet is needed for the static comb. (a) False (b) True
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) paper bits picked up (b) the paper bit size (c) number of rubs (d) the same hair
24. 24.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a steel spoon (c) thermocol bits (d) puffed rice
25. 25.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) dry hair (c) tiny paper bits (d) a balloon
26. 26.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
27. 27.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) nothing at all (c) the stream bends (d) the water freezes
28. 28.⚡ A rubbed comb is held near a pebble. What happens? (a) jumps to the comb (b) does not move
29. 29.True or false: a thin water stream jumps to a charged comb. (a) True (b) False
30. 30.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
31. 31.🛟 Static from a comb is safe. Which electricity must children never play with? (a) paper bits on a comb (b) a rubbed balloon (c) plug points at home (d) a rubbed plastic comb
32. 32.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it turns into water (b) it bursts at once (c) it sticks for a while (d) it falls straight down
33. 33.🔍 Which is the odd one out? (a) a thin water stream (b) dry hair (c) a pebble (d) thermocol bits
34. 34.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
35. 35.🧺 Which of these is needed for the static comb? (a) a battery cell (b) yeast (c) a magnet (d) a balloon
36. 36.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is what we measure. (a) False (b) True
37. 37.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
38. 38.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) on a rooftop (d) indoors
39. 39.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
40. 40.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a magnet (c) a balloon (d) tiny paper bits

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