Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 681 · 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.⚡ Why does the rubbed comb pull the paper bits? (a) it is a magnet (b) it has static charge (c) it is hot (d) it is sticky
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) number of rubs (b) the paper bit size (c) the same comb (d) paper bits picked up
4. 4.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same hair is kept the same. (a) False (b) True
5. 5.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a heavy book (c) thermocol bits (d) a pebble
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is what we measure. (a) True (b) False
7. 7.True or false: a battery cell is needed for the static comb. (a) False (b) True
8. 8.True or false: dry hair jumps to a charged comb. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a pebble (b) dry hair (c) a heavy book (d) a brick
10. 10.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
11. 11.True or false: a plastic comb is needed for the static comb. (a) False (b) True
12. 12.True or false: dry hair is not needed for the static comb. (a) True (b) False
13. 13.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn blue (b) they turn wet (c) nothing happens (d) the bits jump to it
14. 14.True or false: a heavy book does not move to a charged comb. (a) True (b) False
15. 15.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🔍 Which is the odd one out? (a) a brick (b) a heavy book (c) puffed rice (d) a steel spoon
17. 17.⚡ Which of these jumps to a charged comb? (a) tiny paper bits (b) a pebble (c) a steel spoon (d) a brick
18. 18.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) in an open field (d) under a tall tree
19. 19.🔍 Which is the odd one out? (a) puffed rice (b) a thin water stream (c) dry hair (d) a pebble
20. 20.⚖️ 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
21. 21.⚖️ 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 measure it (c) we change it
22. 22.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) paper bits picked up (b) the paper bit size (c) distance to the paper (d) number of rubs
23. 23.🧺 Which of these is needed for the static comb? (a) turmeric powder (b) a plastic comb (c) vinegar (d) a magnet
24. 24.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) paper bits on a comb (c) a rubbed balloon (d) plug points at home
25. 25.🧺 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) a magnet
26. 26.True or false: yeast is not needed for the static comb. (a) False (b) True
27. 27.True or false: a steel spoon jumps to a charged comb. (a) False (b) True
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a mirror (b) a balloon (c) a plastic comb (d) dry hair
29. 29.🧺 Which of these is needed for the static comb? (a) a balloon (b) a mirror (c) a battery cell (d) turmeric powder
30. 30.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
31. 31.🔍 Which is the odd one out? (a) a thin water stream (b) tiny paper bits (c) a heavy book (d) puffed rice
32. 32.True or false: a heavy book jumps to a charged comb. (a) False (b) True
33. 33.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
34. 34.⚡ Which of these does not move to a charged comb? (a) dry hair (b) thermocol bits (c) a thin water stream (d) a brick
35. 35.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) does not move (b) jumps to the comb
36. 36.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
37. 37.True or false: a pebble does not move to a charged comb. (a) True (b) False
38. 38.⚡ Which of these does not move to a charged comb? (a) tiny paper bits (b) a thin water stream (c) a pebble (d) thermocol bits
39. 39.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
40. 40.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it falls straight down (b) it bursts at once (c) it turns into water (d) it sticks for a while

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