Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 774 · 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) it cannot swing (b) much faster (c) about the same (d) much slower
2. 2.True or false: a pencil and tape is needed for the pendulum. (a) False (b) True
3. 3.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the string length”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a string (c) a mirror (d) a heavy nut or washer
5. 5.⚖️ 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
6. 6.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
7. 7.🧺 Do we need a balloon for the pendulum? (a) not needed (b) needed
8. 8.🧺 Which of these is not needed for the pendulum? (a) a string (b) a pencil and tape (c) turmeric powder (d) a stopwatch
9. 9.⚖️ 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) False (b) True
10. 10.🧺 Do we need a mirror for the pendulum? (a) needed (b) not needed
11. 11.🛟 What is a safe bob for a home pendulum? (a) a small nut or washer (b) a sharp tool (c) a heavy brick (d) a glass bottle
12. 12.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is what we measure? (a) time for 10 swings (b) the same hook (c) how far we pull it back (d) the string length
13. 13.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a ruler (c) a balloon (d) a pencil and tape
14. 14.🧺 Which of these is needed for the pendulum? (a) yeast (b) turmeric powder (c) a heavy nut or washer (d) a balloon
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need a magnet for the pendulum? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a stopwatch (c) a pencil and tape (d) a mirror
19. 19.📘 What pulls the pendulum bob back down after each swing? (a) the string (b) magnetism (c) gravity (d) the wind
20. 20.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a battery cell (b) a ruler (c) a pencil and tape (d) a stopwatch
21. 21.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) it is wet (c) the bob could hit you (d) it is hot
22. 22.🧺 Do we need turmeric powder for the pendulum? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the pendulum? (a) a ruler (b) a magnet (c) a pencil and tape (d) a string
24. 24.⚖️ 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
25. 25.🧺 Do we need a heavy nut or washer for the pendulum? (a) not needed (b) needed
26. 26.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
27. 27.True or false: a heavy nut or washer is not needed for the pendulum. (a) True (b) False
28. 28.🕰️ Does a heavier bob change the swing time? (a) yes, much faster (b) no, hardly at all (c) yes, much slower (d) it stops swinging
29. 29.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) turmeric powder (b) a heavy nut or washer (c) a string (d) a pencil and tape
30. 30.True or false: a balloon is needed for the pendulum. (a) True (b) False
31. 31.⚖️ 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
32. 32.🕰️ Which change makes a pendulum swing more slowly? (a) a heavier bob (b) a shorter string (c) a lighter bob (d) a longer string
33. 33.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the weight of the bob”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🔮 Predict: you make the string shorter. The swings get ___. (a) heavier (b) quicker (c) stopped (d) slower
35. 35.🧺 Which of these is needed for the pendulum? (a) a stopwatch (b) a mirror (c) a balloon (d) turmeric powder
36. 36.True or false: a stopwatch is not needed for the pendulum. (a) True (b) False
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.⚖️ 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
39. 39.True or false: a battery cell is not needed for the pendulum. (a) True (b) False
40. 40.🕰️ A pendulum makes 15 swings in 45 seconds. How many seconds does one swing take?

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