Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 174 · 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.True or false: a plastic comb is needed for the static comb. (a) True (b) False
2. 2.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a brick (c) a heavy book (d) a steel spoon
3. 3.⚡ A rubbed comb is held near a heavy book. What happens? (a) does not move (b) jumps to the comb
4. 4.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
5. 5.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) a pebble (c) a brick (d) puffed rice
6. 6.🔍 Which is the odd one out? (a) tiny paper bits (b) a heavy book (c) dry hair (d) thermocol bits
7. 7.⚖️ 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 hair (c) distance to the paper (d) number of rubs
8. 8.🔮 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 turns into water (d) it sticks for a while
9. 9.⚡ Which of these does not move to a charged comb? (a) dry hair (b) puffed rice (c) a thin water stream (d) a brick
10. 10.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the water stops (b) the water freezes (c) the stream bends (d) nothing at all
11. 11.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) gravity (b) static electricity (c) magnetism (d) sunlight
12. 12.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
13. 13.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
14. 14.🧺 Which of these is not needed for the static comb? (a) turmeric powder (b) a plastic comb (c) tiny paper bits (d) a balloon
15. 15.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) plug points at home (c) a rubbed balloon (d) paper bits on a comb
16. 16.True or false: dry hair is needed for the static comb. (a) True (b) False
17. 17.🧺 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 battery cell
18. 18.🧺 Which of these is needed for the static comb? (a) vinegar (b) a magnet (c) a battery cell (d) a balloon
19. 19.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
20. 20.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
21. 21.🔮 Predict: you wet the comb before trying again. What happens? (a) it works better (b) it lights up (c) it hardly works (d) it becomes a magnet
22. 22.⚖️ 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 paper bit size (c) the same comb (d) number of rubs
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is the one thing we change. (a) True (b) False
25. 25.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is kept the same. (a) False (b) True
26. 26.True or false: a thin water stream does not move to a charged comb. (a) True (b) False
27. 27.⚡ Which of these jumps to a charged comb? (a) a pebble (b) tiny paper bits (c) a brick (d) a steel spoon
28. 28.True or false: dry hair jumps to a charged comb. (a) False (b) True
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.True or false: dry hair is not needed for the static comb. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a heavy book (b) puffed rice (c) a brick (d) a steel spoon
32. 32.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) they turn wet (b) nothing happens (c) the bits jump to it (d) they turn blue
33. 33.⚖️ 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
34. 34.True or false: a pebble does not move to a charged comb. (a) False (b) True
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) distance to the paper (b) number of rubs (c) paper bits picked up
36. 36.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a brick (d) a steel spoon
37. 37.🛟 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
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is what we measure. (a) True (b) False
39. 39.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) thermocol bits (c) tiny paper bits (d) a steel spoon
40. 40.⚖️ 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

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