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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 462 · 40 questions
TalentJR

What you do (Only the length matters): 1. Tie the nut to the string and hang it from the taped pencil, 30 cm long. 2. Pull it a little to one side and let go — do not push. 3. Time 10 swings and divide by 10. 4. Change only the string length (60 cm), time 10 swings again, and stand back from the bob.

NameDateTime takenScore ___ / 40
  1. 1.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) the bob could hit you (c) it is wet (d) it is magnetic
  3. 3.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 21 seconds?
  4. 4.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
  5. 5.🧺 Do we need a pencil and tape for the pendulum? (a) not needed (b) needed
  6. 6.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “how far we pull it back”? (a) we keep it the same (b) we measure it (c) we change it
  7. 7.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a balloon (c) a stopwatch (d) a pencil and tape
  8. 8.📘 What pulls the pendulum bob back down after each swing? (a) the string (b) gravity (c) magnetism (d) the wind
  9. 9.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) yeast (c) a pencil and tape (d) a stopwatch
  10. 10.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is what we measure. (a) False (b) True
  11. 11.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 9 seconds?
  12. 12.True or false: a battery cell is needed for the pendulum. (a) True (b) False
  13. 13.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 36 seconds?
  14. 14.True or false: a heavy nut or washer is not needed for the pendulum. (a) True (b) False
  15. 15.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the weight of the bob”? (a) we measure it (b) we keep it the same (c) we change it
  16. 16.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a stopwatch (c) turmeric powder (d) a pencil and tape
  17. 17.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a ruler (c) a stopwatch (d) a mirror
  18. 18.True or false: a magnet is needed for the pendulum. (a) False (b) True
  19. 19.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is kept the same. (a) False (b) True
  20. 20.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 8 seconds?
  21. 21.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
  22. 22.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is the one thing we change. (a) True (b) False
  23. 23.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 12 seconds?
  24. 24.True or false: a string is not needed for the pendulum. (a) False (b) True
  25. 25.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
  26. 26.🧺 Which of these is needed for the pendulum? (a) a balloon (b) a magnet (c) a pencil and tape (d) a battery cell
  27. 27.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it doubles (b) it halves (c) it becomes 4 times (d) it stays the same
  28. 28.🧺 Do we need a ruler for the pendulum? (a) needed (b) not needed
  29. 29.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a pencil and tape (c) a ruler (d) a magnet
  30. 30.🧺 Which of these is not needed for the pendulum? (a) a string (b) a heavy nut or washer (c) a ruler (d) a balloon
  31. 31.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) the weight of the bob (c) time for 10 swings
  32. 32.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) a stopwatch (c) a heavy nut or washer (d) turmeric powder
  33. 33.🧺 Do we need a magnet for the pendulum? (a) needed (b) not needed
  34. 34.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
  35. 35.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 15 seconds?
  36. 36.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?
  37. 37.True or false: a magnet is not needed for the pendulum. (a) False (b) True
  38. 38.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
  39. 39.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the same hook (b) the string length (c) time for 10 swings
  40. 40.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a battery cell (c) a mirror (d) a heavy nut or washer

Answer key

  1. we keep it the same
  2. the bob could hit you
  3. 7
  4. not needed
  5. needed
  6. we keep it the same
  7. a balloon
  8. gravity
  9. yeast
  10. False
  11. 9
  12. False
  13. 12
  14. False
  15. we keep it the same
  16. turmeric powder
  17. a mirror
  18. False
  19. True
  20. 4
  21. 1
  22. False
  23. 6
  24. False
  25. not needed
  26. a pencil and tape
  27. it doubles
  28. needed
  29. a magnet
  30. a balloon
  31. the weight of the bob
  32. turmeric powder
  33. not needed
  34. 2
  35. 5
  36. 1
  37. True
  38. not needed
  39. the same hook
  40. a heavy nut or washer

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