Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 568 · 40 questions

What you do (Pull down, lift up): 1. Push the pencil through the thread reel; an adult holds the pencil ends level. 2. Tie the paper cup to one end of the string and lay the string over the reel. 3. Put coins in the cup and pull the other end down. 4. Feel how hard you pull; never stand under the load or wrap string round your fingers.

1. 1.True or false: a well pulley uses a pulley. (a) False (b) True
2. 2.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
3. 3.⚙️ Which simple machine is a crane? (a) a wheel and axle (b) an inclined plane (c) a pulley (d) a lever
4. 4.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: number of pulleys is the one thing we change. (a) True (b) False
5. 5.⚙️ Which of these uses a pulley? (a) a tap handle (b) a bottle opener (c) a crowbar (d) a well pulley
6. 6.📘 A pulley is a wheel with a groove for a ___. (a) battery (b) magnet (c) nail (d) rope
7. 7.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is kept the same. (a) False (b) True
8. 8.True or false: a doorknob is a lever. (a) True (b) False
9. 9.⚙️ Which of these uses a pulley? (a) a ramp (b) a steering wheel (c) a crane (d) a spoon lifting a lid
10. 10.⚙️ Which simple machine is a slide? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
11. 11.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “how hard we must pull”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a pencil (b) string (c) a balloon (d) coins as the load
13. 13.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: how hard we must pull is what we measure. (a) True (b) False
14. 14.🧺 Do we need a pencil for the thread-reel pulley? (a) not needed (b) needed
15. 15.🔮 Predict: you add a moving pulley that holds the cup. The pull needed becomes ___. (a) the same (b) double (c) about half (d) zero
16. 16.🧺 Which of these is needed for the thread-reel pulley? (a) a mirror (b) coins as the load (c) a magnet (d) turmeric powder
17. 17.🏗️ Why is a pulley used to lift water from a deep well? (a) the bucket floats (b) the rope gets shorter (c) water gets lighter (d) pulling down is easier
18. 18.True or false: coins as the load is needed for the thread-reel pulley. (a) False (b) True
19. 19.⚙️ Which simple machine is a ramp? (a) an inclined plane (b) a wheel and axle (c) a lever (d) a pulley
20. 20.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) coins as the load (c) turmeric powder (d) an empty thread reel
21. 21.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is kept the same? (a) the lifting height (b) how hard we must pull (c) number of pulleys
22. 22.⚙️ Which simple machine is a sloping road? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
23. 23.⚙️ Which of these is an inclined plane? (a) a tap handle (b) a flagpole (c) a slide (d) a see-saw
24. 24.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is the one thing we change. (a) True (b) False
25. 25.⚙️ Which of these is an inclined plane? (a) a flagpole (b) a crowbar (c) a crane (d) a sloping road
26. 26.🧺 Do we need coins as the load for the thread-reel pulley? (a) not needed (b) needed
27. 27.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is kept the same? (a) the same cup of coins (b) how hard we must pull (c) number of pulleys
28. 28.True or false: an empty thread reel is not needed for the thread-reel pulley. (a) False (b) True
29. 29.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is the one thing we change? (a) the same cup of coins (b) number of pulleys (c) how hard we must pull (d) the same string
30. 30.🧺 Do we need string for the thread-reel pulley? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a battery cell (b) a small paper cup (c) string (d) coins as the load
32. 32.⚙️ Which of these uses a pulley? (a) a see-saw (b) a ramp (c) a slide (d) a flagpole
33. 33.🇮🇳 Where do we see a pulley at school on Independence Day? (a) on the blackboard (b) on the bench (c) on the flagpole (d) in the tap
34. 34.🛟 Why should you never stand under a load being lifted? (a) it gets hot (b) it could fall on you (c) it is magnetic (d) it might sing
35. 35.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a pencil (b) turmeric powder (c) an empty thread reel (d) coins as the load
36. 36.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is the one thing we change. (a) True (b) False
37. 37.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “number of pulleys”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the same cup of coins”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) yeast (c) coins as the load (d) a small paper cup
40. 40.True or false: a small paper cup is not needed for the thread-reel pulley. (a) True (b) False

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