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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 908 · 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.

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  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.🕰️ Does a heavier bob change the swing time? (a) it stops swinging (b) yes, much faster (c) no, hardly at all (d) yes, much slower
  3. 3.True or false: a pencil and tape is not needed for the pendulum. (a) True (b) False
  4. 4.🧺 Do we need a heavy nut or washer for the pendulum? (a) not needed (b) needed
  5. 5.🧺 Which of these is not needed for the pendulum? (a) a balloon (b) a ruler (c) a heavy nut or washer (d) a pencil and tape
  6. 6.🧺 Do we need a ruler for the pendulum? (a) not needed (b) needed
  7. 7.🧺 Do we need a balloon for the pendulum? (a) needed (b) not needed
  8. 8.🧺 Do we need a stopwatch for the pendulum? (a) not needed (b) needed
  9. 9.🧺 Which of these is needed for the pendulum? (a) a heavy nut or washer (b) a magnet (c) a balloon (d) a mirror
  10. 10.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) how far we pull it back (b) the same hook (c) the weight of the bob (d) the string length
  11. 11.🧺 Which of these is needed for the pendulum? (a) a balloon (b) a magnet (c) a mirror (d) a string
  12. 12.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
  13. 13.True or false: a heavy nut or washer is not needed for the pendulum. (a) True (b) False
  14. 14.🧺 Do we need a pencil and tape for the pendulum? (a) needed (b) not needed
  15. 15.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a pencil and tape (c) a string (d) turmeric powder
  16. 16.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 24 seconds?
  17. 17.🧺 Do we need yeast for the pendulum? (a) not needed (b) needed
  18. 18.🕰️ A pendulum makes 20 swings in 60 seconds. How many seconds does one swing take?
  19. 19.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?
  20. 20.True or false: a string is not needed for the pendulum. (a) True (b) False
  21. 21.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) a string (c) a heavy nut or washer (d) a mirror
  22. 22.True or false: a magnet is needed for the pendulum. (a) True (b) False
  23. 23.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) it cannot swing (b) much slower (c) about the same (d) much faster
  24. 24.🛟 What is a safe bob for a home pendulum? (a) a glass bottle (b) a heavy brick (c) a sharp tool (d) a small nut or washer
  25. 25.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the string length”? (a) we change it (b) we measure it (c) we keep it the same
  26. 26.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we measure it (b) we change it (c) we keep it the same
  27. 27.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a magnet (b) a ruler (c) a pencil and tape (d) a stopwatch
  28. 28.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
  29. 29.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) time for 10 swings (b) the string length (c) the same hook
  30. 30.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) time for 10 swings (b) the string length (c) the weight of the bob
  31. 31.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 60 seconds?
  32. 32.🛟 Why should you stand back from a swinging pendulum? (a) it is wet (b) it is hot (c) it is magnetic (d) the bob could hit you
  33. 33.🕰️ A pendulum makes 10 swings in 30 seconds. How many seconds does one swing take?
  34. 34.🕰️ Which old clock uses a pendulum to keep time? (a) a sundial (b) a grandfather clock (c) a phone (d) a digital watch
  35. 35.🧺 Which of these is needed for the pendulum? (a) a magnet (b) a pencil and tape (c) turmeric powder (d) a battery cell
  36. 36.⚖️ 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
  37. 37.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a string (d) a battery cell
  38. 38.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 20 seconds?
  39. 39.🕰️ A pendulum makes 20 swings in 40 seconds. How many seconds does one swing take?
  40. 40.True or false: a battery cell is needed for the pendulum. (a) True (b) False

Answer key

  1. we keep it the same
  2. no, hardly at all
  3. False
  4. needed
  5. a balloon
  6. needed
  7. not needed
  8. needed
  9. a heavy nut or washer
  10. the string length
  11. a string
  12. 2
  13. False
  14. needed
  15. turmeric powder
  16. 8
  17. not needed
  18. 3
  19. 3
  20. False
  21. a mirror
  22. False
  23. about the same
  24. a small nut or washer
  25. we change it
  26. we measure it
  27. a magnet
  28. needed
  29. the same hook
  30. the weight of the bob
  31. 20
  32. the bob could hit you
  33. 3
  34. a grandfather clock
  35. a pencil and tape
  36. True
  37. a battery cell
  38. 20
  39. 2
  40. False

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