Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 508 · 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.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) yeast (c) a ruler (d) a stopwatch
2. 2.🧺 Which of these is needed for the pendulum? (a) yeast (b) turmeric powder (c) a balloon (d) a stopwatch
3. 3.🔮 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
4. 4.🧺 Which of these is needed for the pendulum? (a) a ruler (b) yeast (c) turmeric powder (d) a magnet
5. 5.True or false: a ruler is needed for the pendulum. (a) False (b) True
6. 6.🕰️ Does a heavier bob change the swing time? (a) it stops swinging (b) yes, much faster (c) yes, much slower (d) no, hardly at all
7. 7.🕰️ Which change makes a pendulum swing more slowly? (a) a heavier bob (b) a lighter bob (c) a longer string (d) a shorter string
8. 8.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the weight of the bob”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ 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) how far we pull it back (c) the same hook (d) time for 10 swings
10. 10.🛟 What is a safe bob for a home pendulum? (a) a sharp tool (b) a glass bottle (c) a small nut or washer (d) a heavy brick
11. 11.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a heavy nut or washer (c) a stopwatch (d) a balloon
13. 13.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) yeast (b) a string (c) a ruler (d) a heavy nut or washer
14. 14.🧺 Do we need a ruler for the pendulum? (a) not needed (b) needed
15. 15.🕰️ Why do we time 10 swings and divide, instead of timing just one? (a) 10 is a lucky number (b) it is more fun (c) it is more accurate (d) one swing is too slow
16. 16.🧺 Do we need a stopwatch for the pendulum? (a) needed (b) not needed
17. 17.🛟 Why should you stand back from a swinging pendulum? (a) it is hot (b) it is magnetic (c) the bob could hit you (d) it is wet
18. 18.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a ruler (b) a battery cell (c) a string (d) a heavy nut or washer
19. 19.🕰️ A pendulum makes 10 swings in 30 seconds. How many seconds does one swing take?
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.True or false: yeast is not needed for the pendulum. (a) False (b) True
23. 23.🧺 Which of these is not needed for the pendulum? (a) a heavy nut or washer (b) a ruler (c) a magnet (d) a pencil and tape
24. 24.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?
25. 25.🕰️ A pendulum takes 1 second for one swing. How many swings does it make in 10 seconds?
26. 26.True or false: a stopwatch is needed for the pendulum. (a) False (b) True
27. 27.🔮 Predict: you make the string shorter. The swings get ___. (a) quicker (b) stopped (c) heavier (d) slower
28. 28.🕰️ A pendulum makes 10 swings in 10 seconds. How many seconds does one swing take?
29. 29.🕰️ A pendulum takes 2 seconds for one swing. How many swings does it make in 18 seconds?
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 measure it (b) we keep it the same (c) we change it
31. 31.🕰️ A pendulum makes 5 swings in 5 seconds. How many seconds does one swing take?
32. 32.⚖️ Fair test — does a longer string make the pendulum swing more slowly? Which of these is the one thing we change? (a) the string length (b) the weight of the bob (c) the same hook (d) how far we pull it back
33. 33.⚖️ 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
34. 34.True or false: a pencil and tape is not needed for the pendulum. (a) True (b) False
35. 35.🧺 Do we need a string for the pendulum? (a) not needed (b) needed
36. 36.🕰️ A pendulum makes 10 swings in 20 seconds. How many seconds does one swing take?
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) False (b) True
38. 38.True or false: a stopwatch is not needed for the pendulum. (a) False (b) True
39. 39.⚖️ 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) True (b) False
40. 40.📘 What pulls the pendulum bob back down after each swing? (a) magnetism (b) the string (c) the wind (d) gravity

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