Simple Pendulum Experiment Worksheet

Science experiments lesson 23: Simple pendulum timing · Set 395 · 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 slower (c) much faster (d) about the same
2. 2.🔮 Predict: you make the string shorter. The swings get ___. (a) stopped (b) quicker (c) heavier (d) slower
3. 3.True or false: a ruler is needed for the pendulum. (a) True (b) False
4. 4.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a stopwatch (b) a battery cell (c) a pencil and tape (d) a string
5. 5.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a heavy nut or washer (b) a pencil and tape (c) yeast (d) a stopwatch
6. 6.🧺 Do we need turmeric powder for the pendulum? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a pencil and tape (b) a mirror (c) a ruler (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 pencil and tape (d) a balloon
9. 9.🧺 Do we need a pencil and tape for the pendulum? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.📘 What pulls the pendulum bob back down after each swing? (a) magnetism (b) the wind (c) gravity (d) the string
12. 12.🕰️ A pendulum takes 3 seconds for one swing. How many swings does it make in 30 seconds?
13. 13.🧺 Which of these is not needed for the pendulum? (a) a pencil and tape (b) a heavy nut or washer (c) a mirror (d) a stopwatch
14. 14.True or false: a balloon is not needed for the pendulum. (a) True (b) False
15. 15.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a balloon (b) a pencil and tape (c) a heavy nut or washer (d) a stopwatch
16. 16.⚖️ 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
17. 17.🛟 Why should you stand back from a swinging pendulum? (a) it is magnetic (b) it is hot (c) the bob could hit you (d) it is wet
18. 18.⚖️ 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
19. 19.🧺 Which of these is needed for the pendulum? (a) a string (b) a magnet (c) yeast (d) turmeric powder
20. 20.🧺 Which of these is not needed for the pendulum? (a) a stopwatch (b) a string (c) yeast (d) a heavy nut or washer
21. 21.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a string (b) a heavy nut or washer (c) a ruler (d) turmeric powder
22. 22.🧺 Which of these is needed for the pendulum? (a) a ruler (b) a battery cell (c) a balloon (d) a magnet
23. 23.🧺 Which of these is not needed for the pendulum? (a) a battery cell (b) a string (c) a ruler (d) a pencil and tape
24. 24.True or false: a battery cell is not needed for the pendulum. (a) False (b) True
25. 25.True or false: a heavy nut or washer is needed for the pendulum. (a) False (b) True
26. 26.⚖️ 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
27. 27.🧺 Do we need yeast for the pendulum? (a) needed (b) not needed
28. 28.🕰️ Does a heavier bob change the swing time? (a) yes, much slower (b) no, hardly at all (c) it stops swinging (d) yes, much faster
29. 29.🛟 What is a safe bob for a home pendulum? (a) a heavy brick (b) a glass bottle (c) a small nut or washer (d) a sharp tool
30. 30.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the string length is what we measure. (a) False (b) True
31. 31.🧺 Three of these are needed for the pendulum. Which one is NOT needed? (a) a magnet (b) a heavy nut or washer (c) a pencil and tape (d) a stopwatch
32. 32.⚖️ 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) how far we pull it back
33. 33.🧺 Do we need a stopwatch for the pendulum? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “time for 10 swings”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🧺 Do we need a string for the pendulum? (a) needed (b) not needed
36. 36.True or false: turmeric powder is not needed for the pendulum. (a) True (b) False
37. 37.🧺 Which of these is needed for the pendulum? (a) a battery cell (b) a mirror (c) yeast (d) a heavy nut or washer
38. 38.🧺 Which of these is not needed for the pendulum? (a) a string (b) a pencil and tape (c) a stopwatch (d) turmeric powder
39. 39.⚖️ 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
40. 40.🕰️ A pendulum makes 15 swings in 15 seconds. How many seconds does one swing take?

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids