Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 885 · 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.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much slower (b) it cannot swing (c) much faster (d) about the same
2. 2.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a ruler (c) yeast (d) a string
3. 3.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a ruler (c) a string (d) a balloon
4. 4.🧺 Do we need a magnet for the pendulum? (a) not needed (b) needed
5. 5.⚖️ 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 change it (c) we measure it
6. 6.True or false: a balloon is needed for the pendulum. (a) False (b) True
7. 7.🧺 Which of these is not needed for the pendulum? (a) a string (b) a stopwatch (c) a mirror (d) a pencil and tape
8. 8.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
9. 9.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) it is magnetic (c) it is wet (d) the bob could hit you
10. 10.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 51 seconds?
11. 11.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a battery cell (d) a pencil and tape
12. 12.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a string (c) a pencil and tape (d) a balloon
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a mirror (c) a ruler (d) a string
15. 15.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the same hook is what we measure. (a) False (b) True
16. 16.🧺 Do we need a mirror for the pendulum? (a) not needed (b) needed
17. 17.🕰️ A pendulum makes 5 swings in 15 seconds. How many seconds does one swing take?
18. 18.🕰️ Why do we time 10 swings and divide, instead of timing just one? (a) one swing is too slow (b) 10 is a lucky number (c) it is more fun (d) it is more accurate
19. 19.⚖️ 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
20. 20.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) the same hook (b) time for 10 swings (c) the weight of the bob (d) the string length
22. 22.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a heavy nut or washer (c) a ruler (d) yeast
23. 23.True or false: a string is needed for the pendulum. (a) True (b) False
24. 24.🧺 Which of these is needed for the pendulum? (a) a string (b) a balloon (c) a mirror (d) a magnet
25. 25.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 27 seconds?
26. 26.🛟 What is a safe bob for a home pendulum? (a) a glass bottle (b) a small nut or washer (c) a heavy brick (d) a sharp tool
27. 27.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: time for 10 swings is the one thing we change. (a) False (b) True
28. 28.🧺 Do we need yeast 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 the one thing we change? (a) time for 10 swings (b) how far we pull it back (c) the weight of the bob (d) the string length
30. 30.⚖️ 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
31. 31.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it becomes 4 times (b) it halves (c) it stays the same (d) it doubles
32. 32.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) turmeric powder (c) yeast (d) a balloon
33. 33.True or false: a magnet is not needed for the pendulum. (a) True (b) False
34. 34.True or false: turmeric powder is needed for the pendulum. (a) True (b) False
35. 35.True or false: a ruler is not needed for the pendulum. (a) True (b) False
36. 36.🧺 Which of these is needed for the pendulum? (a) a mirror (b) a heavy nut or washer (c) a magnet (d) a battery cell
37. 37.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a magnet (c) a stopwatch (d) a ruler
38. 38.🧺 Do we need a battery cell for the pendulum? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the pendulum? (a) a ruler (b) a magnet (c) turmeric powder (d) a balloon
40. 40.⚖️ 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

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