Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 71 · 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.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) a magnet (d) a plastic comb
2. 2.True or false: vinegar is needed for the static comb. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a brick (c) dry hair (d) a heavy book
4. 4.⚡ Which of these jumps to a charged comb? (a) a brick (b) a steel spoon (c) puffed rice (d) a heavy book
5. 5.⚡ A rubbed comb is held near a brick. What happens? (a) jumps to the comb (b) does not move
6. 6.🧺 Which of these is needed for the static comb? (a) vinegar (b) a mirror (c) dry hair (d) a magnet
7. 7.🧺 Do we need turmeric powder for the static comb? (a) needed (b) not needed
8. 8.True or false: vinegar is not needed for the static comb. (a) False (b) True
9. 9.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it has static charge (c) it is sticky (d) it is a magnet
10. 10.🔍 Which is the odd one out? (a) tiny paper bits (b) a thin water stream (c) puffed rice (d) a steel spoon
11. 11.True or false: a steel spoon jumps to a charged comb. (a) True (b) False
12. 12.🛟 There is lightning outside. Where is it safest to be? (a) on a rooftop (b) indoors (c) in an open field (d) under a tall tree
13. 13.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed balloon (b) paper bits on a comb (c) plug points at home (d) a rubbed plastic comb
14. 14.True or false: a mirror is needed for the static comb. (a) True (b) False
15. 15.True or false: tiny paper bits jumps to a charged comb. (a) False (b) True
16. 16.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
17. 17.⚖️ 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 same hair (c) the same comb (d) number of rubs
18. 18.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
19. 19.🧺 Do we need a magnet for the static comb? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a battery cell (b) a balloon (c) tiny paper bits (d) a plastic comb
21. 21.🔍 Which is the odd one out? (a) puffed rice (b) dry hair (c) a thin water stream (d) a brick
22. 22.⚡ Which of these jumps to a charged comb? (a) a brick (b) a pebble (c) dry hair (d) a steel spoon
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
25. 25.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) sunlight (c) gravity (d) static electricity
26. 26.True or false: dry hair jumps to a charged comb. (a) False (b) True
27. 27.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) puffed rice (c) a steel spoon (d) tiny paper bits
28. 28.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) tiny paper bits (c) a mirror (d) a balloon
29. 29.⚡ 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
30. 30.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🔮 Predict: you wet the comb before trying again. What happens? (a) it hardly works (b) it works better (c) it becomes a magnet (d) it lights up
32. 32.🔮 Predict: a charged comb is held near a thin stream of tap water. What happens? (a) the stream bends (b) the water stops (c) nothing at all (d) the water freezes
33. 33.True or false: a balloon is not needed for the static comb. (a) True (b) False
34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a thin water stream (b) a pebble (c) a heavy book (d) a steel spoon
36. 36.True or false: a magnet is needed for the static comb. (a) False (b) True
37. 37.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) dry hair (c) turmeric powder (d) tiny paper bits
38. 38.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a balloon (c) vinegar (d) tiny paper bits
39. 39.True or false: a plastic comb is not needed for the static comb. (a) False (b) True
40. 40.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it bursts at once (b) it sticks for a while (c) it falls straight down (d) it turns into water

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