Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 752 · 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) distance to the paper (b) the paper bit size (c) number of rubs (d) paper bits picked up
2. 2.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
3. 3.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) thermocol bits (d) a brick
4. 4.⚖️ 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
5. 5.True or false: vinegar is needed for the static comb. (a) True (b) False
6. 6.True or false: thermocol bits does not move to a charged comb. (a) False (b) True
7. 7.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) thermocol bits (d) a steel spoon
8. 8.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
9. 9.⚖️ 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
10. 10.True or false: a balloon is not needed for the static comb. (a) False (b) True
11. 11.True or false: a pebble jumps to a charged comb. (a) False (b) True
12. 12.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
13. 13.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) turmeric powder
14. 14.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is hot (d) it is a magnet
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) yeast
16. 16.True or false: turmeric powder is needed for the static comb. (a) True (b) False
17. 17.🔮 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
18. 18.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) dry hair (b) a steel spoon (c) tiny paper bits (d) thermocol bits
21. 21.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) thermocol bits (d) tiny paper bits
22. 22.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
23. 23.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a plastic comb (d) vinegar
24. 24.🧺 Which of these is needed for the static comb? (a) a magnet (b) yeast (c) a plastic comb (d) a mirror
25. 25.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a mirror (d) a plastic comb
26. 26.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it works better (d) it becomes a magnet
27. 27.🧺 Which of these is needed for the static comb? (a) a mirror (b) a magnet (c) turmeric powder (d) dry hair
28. 28.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
29. 29.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) sunlight (b) gravity (c) static electricity (d) magnetism
30. 30.True or false: puffed rice jumps to a charged comb. (a) True (b) False
31. 31.🧺 Do we need a balloon for the static comb? (a) needed (b) not needed
32. 32.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
33. 33.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it sticks for a while (c) it bursts at once (d) it turns into water
34. 34.True or false: a battery cell is not needed for the static comb. (a) False (b) True
35. 35.🧺 Do we need a mirror for the static comb? (a) not needed (b) needed
36. 36.True or false: a plastic comb is not needed for the static comb. (a) True (b) False
37. 37.⚖️ 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
38. 38.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
39. 39.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) plug points at home (c) paper bits on a comb (d) a rubbed plastic comb
40. 40.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) dry days are noisy (c) wet hair is magnetic (d) water adds charge

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