Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 314 · 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.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a balloon (c) dry hair (d) a battery cell
2. 2.True or false: a balloon is not needed for the static comb. (a) False (b) True
3. 3.True or false: dry hair does not move to a charged comb. (a) False (b) True
4. 4.⚖️ 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 same comb (c) number of rubs (d) the same hair
5. 5.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
6. 6.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it hardly works (c) it becomes a magnet (d) it works better
7. 7.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a heavy book (d) thermocol bits
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) a rubbed plastic comb (c) paper bits on a comb (d) plug points at home
9. 9.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) dry hair (c) a mirror (d) vinegar
10. 10.🔍 Which is the odd one out? (a) a steel spoon (b) dry hair (c) a heavy book (d) a brick
11. 11.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) the bits jump to it (c) they turn wet (d) they turn blue
12. 12.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) turmeric powder (d) dry hair
13. 13.🔮 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 sticks for a while (d) it turns into water
14. 14.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) paper bits picked up (c) number of rubs (d) distance to the paper
15. 15.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
16. 16.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
17. 17.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
18. 18.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a pebble (c) a brick (d) a steel spoon
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) dry hair (c) thermocol bits (d) a heavy book
21. 21.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
22. 22.True or false: a balloon is needed for the static comb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a brick (b) tiny paper bits (c) a pebble (d) a steel spoon
24. 24.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is the one thing we change. (a) False (b) True
26. 26.🧺 Do we need tiny paper bits for the static comb? (a) not needed (b) needed
27. 27.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) wet hair is magnetic (d) dry days are noisy
28. 28.⚖️ 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
29. 29.🔍 Which is the odd one out? (a) dry hair (b) a thin water stream (c) tiny paper bits (d) a brick
30. 30.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) nothing at all (b) the stream bends (c) the water freezes (d) the water stops
31. 31.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) puffed rice (b) a brick (c) a pebble (d) a heavy book
33. 33.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
34. 34.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) indoors (d) in an open field
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) tiny paper bits (d) a mirror
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a plastic comb (d) a magnet
37. 37.⚖️ 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
38. 38.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
39. 39.⚖️ 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 measure it (c) we keep it the same
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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