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Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 34 · 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 balloon is needed for the pendulum. (a) True (b) False
  2. 2.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 30 seconds?
  3. 3.📘 What pulls the pendulum bob back down after each swing? (a) gravity (b) the string (c) magnetism (d) the wind
  4. 4.True or false: yeast is needed for the pendulum. (a) True (b) False
  5. 5.True or false: a stopwatch is needed for the pendulum. (a) False (b) True
  6. 6.🔮 Predict: you make the string shorter. The swings get ___. (a) heavier (b) slower (c) stopped (d) quicker
  7. 7.🧺 Do we need a string for the pendulum? (a) needed (b) not needed
  8. 8.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
  9. 9.⚖️ 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 measure it (c) we change it
  10. 10.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
  11. 11.True or false: a pencil and tape is not needed for the pendulum. (a) False (b) True
  12. 12.True or false: a magnet is not needed for the pendulum. (a) False (b) True
  13. 13.True or false: a stopwatch is not needed for the pendulum. (a) False (b) True
  14. 14.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a heavy brick (c) a small nut or washer (d) a glass bottle
  15. 15.🧺 Do we need a stopwatch for the pendulum? (a) needed (b) not needed
  16. 16.⚖️ 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 change it (c) we measure it
  17. 17.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) turmeric powder (b) a stopwatch (c) a pencil and tape (d) a string
  18. 18.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 28 seconds?
  19. 19.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a balloon (b) a ruler (c) a stopwatch (d) a string
  20. 20.🧺 Do we need a balloon for the pendulum? (a) not needed (b) needed
  21. 21.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it stays the same (b) it halves (c) it becomes 4 times (d) it doubles
  22. 22.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is what we measure. (a) False (b) True
  23. 23.🧺 Which of these is needed for the pendulum? (a) yeast (b) a mirror (c) turmeric powder (d) a pencil and tape
  24. 24.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a heavy nut or washer (c) a ruler (d) a magnet
  25. 25.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is what we measure. (a) False (b) True
  26. 26.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) it is hot (c) the bob could hit you (d) it is wet
  27. 27.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 10 seconds?
  28. 28.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is the one thing we change. (a) False (b) True
  29. 29.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the string length”? (a) we keep it the same (b) we measure it (c) we change it
  30. 30.🧺 Do we need a magnet for the pendulum? (a) needed (b) not needed
  31. 31.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a pencil and tape (c) a heavy nut or washer (d) turmeric powder
  32. 32.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a ruler (c) yeast (d) a stopwatch
  33. 33.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is the one thing we change. (a) False (b) True
  34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the weight of the bob (b) time for 10 swings (c) the string length
  35. 35.True or false: a pencil and tape is needed for the pendulum. (a) False (b) True
  36. 36.⚖️ 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) time for 10 swings (c) how far we pull it back (d) the string length
  37. 37.🕰️ Does a heavier bob change the swing time? (a) no, hardly at all (b) yes, much faster (c) it stops swinging (d) yes, much slower
  38. 38.True or false: a ruler is needed for the pendulum. (a) True (b) False
  39. 39.True or false: yeast is not needed for the pendulum. (a) False (b) True
  40. 40.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a pencil and tape (c) a battery cell (d) a heavy nut or washer

Answer key

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

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