Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 927 · 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 kept the same? (a) the paper bit size (b) number of rubs (c) paper bits picked up
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) vinegar (c) dry hair (d) tiny paper bits
3. 3.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) tiny paper bits (c) a steel spoon (d) dry hair
4. 4.True or false: vinegar is needed for the static comb. (a) True (b) False
5. 5.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
6. 6.True or false: puffed rice does not move to a charged comb. (a) False (b) True
7. 7.🧺 Which of these is needed for the static comb? (a) dry hair (b) a battery cell (c) a mirror (d) yeast
8. 8.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water freezes (b) the water stops (c) the stream bends (d) nothing at all
9. 9.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it hardly works (c) it lights up (d) it works better
11. 11.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
12. 12.⚖️ 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) True (b) False
13. 13.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it turns into water (c) it bursts at once (d) it sticks for a while
14. 14.⚡ Which of these jumps to a charged comb? (a) a heavy book (b) a pebble (c) thermocol bits (d) a brick
15. 15.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
16. 16.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
17. 17.🧺 Do we need dry hair for the static comb? (a) not needed (b) needed
18. 18.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
19. 19.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a thin water stream (c) a heavy book (d) a brick
20. 20.⚡ A rubbed comb is held near a steel spoon. What happens? (a) does not move (b) jumps to the comb
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) tiny paper bits (c) dry hair (d) puffed rice
22. 22.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) a heavy book (d) a steel spoon
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a thin water stream (c) dry hair (d) thermocol bits
24. 24.True or false: a plastic comb is needed for the static comb. (a) False (b) True
25. 25.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) a pebble (d) tiny paper bits
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same comb (c) the same hair (d) distance to the paper
27. 27.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) in an open field (c) indoors (d) on a rooftop
28. 28.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
29. 29.True or false: tiny paper bits does not move to a charged comb. (a) True (b) False
30. 30.🧺 Do we need yeast for the static comb? (a) not needed (b) needed
31. 31.⚖️ 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 change it (c) we measure it
32. 32.⚖️ 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 same comb (c) the paper bit size (d) number of rubs
33. 33.⚡ Which of these jumps to a charged comb? (a) puffed rice (b) a pebble (c) a heavy book (d) a brick
34. 34.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
35. 35.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) tiny paper bits (c) thermocol bits (d) dry hair
36. 36.True or false: dry hair does not move to a charged 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) False (b) True
38. 38.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) puffed rice (b) tiny paper bits (c) a thin water stream (d) a heavy book
40. 40.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we change it (b) we measure it (c) we keep it the same

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