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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 528 · 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.True or false: a magnet is not needed for the pendulum. (a) True (b) False
  2. 2.True or false: turmeric powder is needed for the pendulum. (a) False (b) True
  3. 3.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) the weight of the bob (b) the same hook (c) how far we pull it back (d) time for 10 swings
  4. 4.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 16 seconds?
  5. 5.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) a heavy nut or washer (c) a mirror (d) yeast
  6. 6.⚖️ 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
  7. 7.🧺 Do we need a string for the pendulum? (a) needed (b) not needed
  8. 8.🔮 Predict: you make the string shorter. The swings get ___. (a) slower (b) stopped (c) quicker (d) heavier
  9. 9.True or false: a stopwatch is needed for the pendulum. (a) False (b) True
  10. 10.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is kept the same. (a) True (b) False
  11. 11.🧺 Which of these is needed for the pendulum? (a) yeast (b) a magnet (c) a mirror (d) a string
  12. 12.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a battery cell (c) a stopwatch (d) a string
  13. 13.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) it is wet (c) it is hot (d) the bob could hit you
  14. 14.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 20 seconds?
  15. 15.True or false: a string is not needed for the pendulum. (a) False (b) True
  16. 16.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 36 seconds?
  17. 17.True or false: a ruler is needed for the pendulum. (a) False (b) True
  18. 18.🧺 Which of these is not needed for the pendulum? (a) a string (b) a ruler (c) a mirror (d) a stopwatch
  19. 19.🧺 Do we need a mirror for the pendulum? (a) not needed (b) needed
  20. 20.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a pencil and tape (c) a magnet (d) a string
  21. 21.🧺 Do we need a magnet for the pendulum? (a) not needed (b) needed
  22. 22.True or false: a battery cell is not needed for the pendulum. (a) False (b) True
  23. 23.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we keep it the same (b) we measure it (c) we change it
  24. 24.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a stopwatch (c) a mirror (d) a pencil and tape
  25. 25.True or false: a string is needed for the pendulum. (a) False (b) True
  26. 26.🧺 Do we need yeast for the pendulum? (a) not needed (b) needed
  27. 27.🧺 Which of these is needed for the pendulum? (a) yeast (b) a ruler (c) a magnet (d) a battery cell
  28. 28.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a small nut or washer (c) a heavy brick (d) a glass bottle
  29. 29.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
  30. 30.🕰️ 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
  31. 31.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it halves (b) it becomes 4 times (c) it doubles (d) it stays the same
  32. 32.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) the weight of the bob (b) the string length (c) how far we pull it back (d) the same hook
  33. 33.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.🧺 Which of these is needed for the pendulum? (a) a mirror (b) turmeric powder (c) yeast (d) a pencil and tape
  35. 35.🧺 Which of these is not needed for the pendulum? (a) a battery cell (b) a ruler (c) a pencil and tape (d) a string
  36. 36.🕰️ A pendulum makes 10 swings in 30 seconds. How many seconds does one swing take?
  37. 37.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 15 seconds?
  38. 38.True or false: a heavy nut or washer is not needed for the pendulum. (a) False (b) True
  39. 39.🕰️ A pendulum makes 5 swings in 15 seconds. How many seconds does one swing take?
  40. 40.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?

Answer key

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

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