Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 685 · 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.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) the bob could hit you (c) it is wet (d) it is hot
2. 2.🧺 Do we need a heavy nut or washer for the pendulum? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the pendulum? (a) a string (b) a balloon (c) a ruler (d) a heavy nut or washer
4. 4.🧺 Do we need a mirror for the pendulum? (a) needed (b) not needed
5. 5.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) the same hook (b) the string length (c) time for 10 swings (d) how far we pull it back
6. 6.🔮 A heavier child sits on the same park swing. What happens to the swing time? (a) much faster (b) about the same (c) much slower (d) it cannot swing
7. 7.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the string length”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is kept the same. (a) False (b) True
9. 9.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: how far we pull it back is the one thing we change. (a) True (b) False
10. 10.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a mirror (c) a ruler (d) a pencil and tape
11. 11.🕰️ Why do we time 10 swings and divide, instead of timing just one? (a) it is more accurate (b) it is more fun (c) one swing is too slow (d) 10 is a lucky number
12. 12.🕰️ A pendulum makes 10 swings in 30 seconds. How many seconds does one swing take?
13. 13.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🕰️ A pendulum makes 20 swings in 20 seconds. How many seconds does one swing take?
15. 15.🧺 Do we need turmeric powder for the pendulum? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is kept the same? (a) the string length (b) how far we pull it back (c) time for 10 swings
17. 17.True or false: a ruler is not needed for the pendulum. (a) True (b) False
18. 18.🔮 Predict: you make the string 4 times as long. How does the swing time change? (a) it becomes 4 times (b) it doubles (c) it stays the same (d) it halves
19. 19.🧺 Do we need yeast for the pendulum? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a pencil and tape (c) a mirror (d) a string
21. 21.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) yeast (c) a string (d) a pencil and tape
22. 22.⚖️ 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 string length (c) how far we pull it back (d) the same hook
23. 23.🧺 Which of these is not needed for the pendulum? (a) a magnet (b) a pencil and tape (c) a heavy nut or washer (d) a stopwatch
24. 24.True or false: a balloon is needed for the pendulum. (a) True (b) False
25. 25.True or false: a battery cell is not needed for the pendulum. (a) True (b) False
26. 26.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
27. 27.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a heavy nut or washer (c) a pencil and tape (d) a magnet
28. 28.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 13 seconds?
29. 29.🔮 Predict: you make the string shorter. The swings get ___. (a) heavier (b) quicker (c) slower (d) stopped
30. 30.📘 What pulls the pendulum bob back down after each swing? (a) gravity (b) the wind (c) the string (d) magnetism
31. 31.🧺 Do we need a string for the pendulum? (a) needed (b) not needed
32. 32.True or false: a magnet is needed for the pendulum. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) a string (c) a stopwatch (d) turmeric powder
35. 35.True or false: a heavy nut or washer is not needed for the pendulum. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ 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 same hook
38. 38.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 12 seconds?
40. 40.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a stopwatch (c) a heavy nut or washer (d) a battery cell

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