Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 290 · 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 balloon (b) tiny paper bits (c) a plastic comb (d) yeast
2. 2.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) magnetism (c) static electricity (d) sunlight
3. 3.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it becomes a magnet (d) it hardly works
4. 4.🔍 Which is the odd one out? (a) a thin water stream (b) thermocol bits (c) a brick (d) dry hair
5. 5.🧺 Which of these is not needed for the static comb? (a) a balloon (b) tiny paper bits (c) a battery cell (d) a plastic comb
6. 6.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) dry days are noisy (c) damp air leaks charge (d) wet hair is magnetic
7. 7.⚖️ 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 hair (b) number of rubs (c) distance to the paper (d) the same comb
8. 8.🔍 Which is the odd one out? (a) a heavy book (b) a steel spoon (c) a pebble (d) puffed rice
9. 9.True or false: a battery cell is not needed for the static comb. (a) True (b) False
10. 10.⚖️ 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
11. 11.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) under a tall tree (c) in an open field (d) indoors
12. 12.⚡ A rubbed comb is held near a thin water stream. What happens? (a) jumps to the comb (b) does not move
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a plastic comb (b) a mirror (c) a balloon (d) dry hair
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
16. 16.True or false: a battery cell is needed for the static comb. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.True or false: a mirror is not needed for the static comb. (a) False (b) True
19. 19.True or false: a plastic comb is needed for the static comb. (a) False (b) True
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) vinegar (d) a balloon
21. 21.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water
22. 22.True or false: thermocol bits jumps to a charged comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) thermocol bits (b) a heavy book (c) a steel spoon (d) a pebble
24. 24.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a thin water stream (d) a heavy book
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.⚡ Which of these jumps to a charged comb? (a) a brick (b) a heavy book (c) a thin water stream (d) a pebble
27. 27.True or false: a magnet is not needed for the static comb. (a) True (b) False
28. 28.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) tiny paper bits (c) a steel spoon (d) a brick
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) False (b) True
32. 32.🧺 Do we need a magnet for the static comb? (a) not needed (b) needed
33. 33.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is a magnet (d) it is sticky
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) turmeric powder (c) tiny paper bits (d) a plastic comb
37. 37.🔍 Which is the odd one out? (a) tiny paper bits (b) a steel spoon (c) a pebble (d) a heavy book
38. 38.True or false: turmeric powder is needed for the static comb. (a) False (b) True
39. 39.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) plug points at home (d) paper bits on a comb
40. 40.⚡ Which of these jumps to a charged comb? (a) dry hair (b) a pebble (c) a heavy book (d) a steel spoon

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