Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 296 · 40 questions

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.

1. 1.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a pencil and tape (c) turmeric powder (d) a string
2. 2.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a heavy nut or washer (c) a mirror (d) a ruler
3. 3.🕰️ Does a heavier bob change the swing time? (a) yes, much slower (b) yes, much faster (c) it stops swinging (d) no, hardly at all
4. 4.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much faster (b) it cannot swing (c) about the same (d) much slower
5. 5.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a stopwatch (c) turmeric powder (d) a string
6. 6.True or false: a ruler is needed for the pendulum. (a) False (b) True
7. 7.🧺 Which of these is not needed for the pendulum? (a) a magnet (b) a pencil and tape (c) a string (d) a heavy nut or washer
8. 8.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a string (c) a battery cell (d) a ruler
9. 9.🧺 Which of these is needed for the pendulum? (a) yeast (b) a mirror (c) a battery cell (d) a stopwatch
10. 10.🕰️ A pendulum makes 5 swings in 15 seconds. How many seconds does one swing take?
11. 11.🧺 Which of these is needed for the pendulum? (a) a balloon (b) a pencil and tape (c) turmeric powder (d) a battery cell
12. 12.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 8 seconds?
13. 13.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a heavy brick (c) a glass bottle (d) a small nut or washer
14. 14.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
15. 15.True or false: a pencil and tape is not needed for the pendulum. (a) False (b) True
16. 16.🔮 Predict: you make the string shorter. The swings get ___. (a) stopped (b) slower (c) heavier (d) quicker
17. 17.🕰️ A pendulum makes 5 swings in 10 seconds. How many seconds does one swing take?
18. 18.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a magnet (c) a ruler (d) a pencil and tape
19. 19.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) yeast (c) a pencil and tape (d) a string
20. 20.🧺 Which of these is needed for the pendulum? (a) a string (b) yeast (c) a balloon (d) a mirror
21. 21.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) time for 10 swings (c) the weight of the bob
22. 22.True or false: turmeric powder is needed for the pendulum. (a) True (b) False
23. 23.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) the same hook (b) how far we pull it back (c) the string length (d) time for 10 swings
24. 24.🧺 Do we need a heavy nut or washer for the pendulum? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the pendulum? (a) turmeric powder (b) a mirror (c) a ruler (d) a battery cell
26. 26.True or false: a stopwatch is not needed for the pendulum. (a) False (b) True
27. 27.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is kept the same. (a) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the same hook (b) time for 10 swings (c) the string length
30. 30.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a stopwatch (c) a pencil and tape (d) a battery cell
31. 31.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
32. 32.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is kept the same. (a) True (b) False
33. 33.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it halves (b) it stays the same (c) it doubles (d) it becomes 4 times
34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is what we measure. (a) True (b) False
35. 35.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is kept the same. (a) True (b) False
36. 36.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 42 seconds?
37. 37.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is kept the same. (a) True (b) False
38. 38.🧺 Do we need a stopwatch for the pendulum? (a) not needed (b) needed
39. 39.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) it is hot (c) it is wet (d) the bob could hit you
40. 40.⚖️ 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 change it (c) we measure it

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