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Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 897 · 40 questions
TalentJR

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.

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  1. 1.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a battery cell (c) a balloon (d) dry hair
  2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) distance to the paper (c) paper bits picked up
  3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the same comb (b) distance to the paper (c) paper bits picked up (d) number of rubs
  4. 4.🧺 Do we need a battery cell for the static comb? (a) needed (b) not needed
  5. 5.True or false: a mirror is needed for the static comb. (a) False (b) True
  6. 6.⚡ A rubbed comb is held near dry hair. What happens? (a) jumps to the comb (b) does not move
  7. 7.🧺 Which of these is needed for the static comb? (a) dry hair (b) a magnet (c) a mirror (d) yeast
  8. 8.True or false: dry hair does not move to a charged comb. (a) False (b) True
  9. 9.True or false: vinegar is not needed for the static comb. (a) False (b) True
  10. 10.True or false: turmeric powder is not needed for the static comb. (a) True (b) False
  11. 11.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a mirror (c) dry hair (d) a balloon
  12. 12.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
  13. 13.🔍 Which is the odd one out? (a) a brick (b) a steel spoon (c) tiny paper bits (d) a heavy book
  14. 14.🧺 Do we need dry hair for the static comb? (a) needed (b) not needed
  15. 15.⚡ Which of these does not move to a charged comb? (a) a brick (b) dry hair (c) thermocol bits (d) tiny paper bits
  16. 16.True or false: thermocol bits does not move to a charged comb. (a) True (b) False
  17. 17.True or false: tiny paper bits jumps to a charged comb. (a) True (b) False
  18. 18.🧺 Do we need yeast for the static comb? (a) needed (b) not needed
  19. 19.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
  20. 20.🧺 Do we need tiny paper bits for the static comb? (a) needed (b) not needed
  21. 21.⚖️ 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) True (b) False
  22. 22.True or false: a heavy book does not move to a charged comb. (a) True (b) False
  23. 23.⚖️ 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
  24. 24.⚖️ 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
  25. 25.🛟 There is lightning outside. Where is it safest to be? (a) indoors (b) on a rooftop (c) under a tall tree (d) in an open field
  26. 26.🧺 Which of these is needed for the static comb? (a) a magnet (b) a battery cell (c) vinegar (d) a balloon
  27. 27.True or false: a steel spoon does not move to a charged comb. (a) False (b) True
  28. 28.⚡ Why does the rubbed comb pull the paper bits? (a) it is sticky (b) it is hot (c) it has static charge (d) it is a magnet
  29. 29.🧺 Which of these is not needed for the static comb? (a) a plastic comb (b) a magnet (c) tiny paper bits (d) a balloon
  30. 30.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) thermocol bits (b) a pebble (c) a brick (d) a heavy book
  32. 32.True or false: tiny paper bits does not move to a charged comb. (a) False (b) True
  33. 33.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is kept the same. (a) False (b) True
  34. 34.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the paper bit size”? (a) we measure it (b) we change it (c) we keep it the same
  35. 35.True or false: puffed rice does not move to a charged comb. (a) False (b) True
  36. 36.🧺 Do we need turmeric powder for the static comb? (a) not needed (b) needed
  37. 37.🧺 Do we need a plastic comb for the static comb? (a) not needed (b) needed
  38. 38.⚡ Why does the comb trick work best on a dry day? (a) damp air leaks charge (b) water adds charge (c) dry days are noisy (d) wet hair is magnetic
  39. 39.True or false: dry hair jumps to a charged comb. (a) False (b) True
  40. 40.⚖️ 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

Answer key

  1. a battery cell
  2. distance to the paper
  3. number of rubs
  4. not needed
  5. False
  6. jumps to the comb
  7. dry hair
  8. False
  9. True
  10. True
  11. a mirror
  12. not needed
  13. tiny paper bits
  14. needed
  15. a brick
  16. False
  17. True
  18. not needed
  19. plug points at home
  20. needed
  21. True
  22. True
  23. False
  24. we change it
  25. indoors
  26. a balloon
  27. True
  28. it has static charge
  29. a magnet
  30. False
  31. thermocol bits
  32. False
  33. True
  34. we keep it the same
  35. False
  36. not needed
  37. needed
  38. damp air leaks charge
  39. True
  40. False

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