Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 148 · 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 paper bit size (b) the same comb (c) distance to the paper (d) number of rubs
2. 2.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the stream bends (c) the water stops (d) nothing at all
3. 3.🔍 Which is the odd one out? (a) dry hair (b) puffed rice (c) a brick (d) a thin water stream
4. 4.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
5. 5.True or false: a heavy book jumps to a charged comb. (a) True (b) False
6. 6.⚖️ 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
7. 7.True or false: a battery cell is needed for the static comb. (a) False (b) True
8. 8.🧺 Which of these is needed for the static comb? (a) a battery cell (b) a balloon (c) a magnet (d) a mirror
9. 9.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a steel spoon (d) thermocol bits
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) the same hair (b) number of rubs (c) paper bits picked up
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is the one thing we change. (a) False (b) True
12. 12.🔮 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 falls straight down (d) it sticks for a while
13. 13.⚡ A rubbed comb is held near a steel spoon. What happens? (a) jumps to the comb (b) does not move
14. 14.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it becomes a magnet (c) it lights up (d) it hardly works
15. 15.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) a rubbed plastic comb (c) paper bits on a comb (d) a rubbed balloon
16. 16.⚡ Why does the comb trick work best on a dry day? (a) dry days are noisy (b) damp air leaks charge (c) water adds charge (d) wet hair is magnetic
17. 17.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a balloon (c) a battery cell (d) a plastic comb
18. 18.🔍 Which is the odd one out? (a) thermocol bits (b) tiny paper bits (c) a steel spoon (d) puffed rice
19. 19.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) thermocol bits (c) puffed rice (d) a heavy book
20. 20.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
21. 21.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
22. 22.⚡ Why does the rubbed comb pull the paper bits? (a) it has static charge (b) it is sticky (c) it is a magnet (d) it is hot
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the static comb? (a) tiny paper bits (b) dry hair (c) a balloon (d) vinegar
26. 26.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) a plastic comb (c) a balloon (d) a mirror
27. 27.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) the bits jump to it (c) they turn wet (d) nothing happens
28. 28.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the static comb? (a) yeast (b) a battery cell (c) a plastic comb (d) turmeric powder
30. 30.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) tiny paper bits (c) turmeric powder (d) a plastic comb
32. 32.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a mirror (d) dry hair
33. 33.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) under a tall tree (c) indoors (d) on a rooftop
34. 34.True or false: dry hair is needed for the static comb. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) tiny paper bits (b) thermocol bits (c) a heavy book (d) a thin water stream
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) a balloon (c) tiny paper bits (d) dry hair
37. 37.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) dry hair (d) a pebble
38. 38.🔍 Which is the odd one out? (a) a steel spoon (b) a heavy book (c) dry hair (d) a brick
39. 39.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
40. 40.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb

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