Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 410 · 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.⚙️ Which simple machine is a steering wheel? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
2. 2.⚙️ Which simple machine is a ramp? (a) an inclined plane (b) a lever (c) a pulley (d) a wheel and axle
3. 3.⚖️ 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 string (b) the same cup of coins (c) number of pulleys (d) how hard we must pull
4. 4.⚙️ Which simple machine is a sloping road? (a) a pulley (b) an inclined plane (c) a wheel and axle (d) a lever
5. 5.🧺 Which of these is not needed for the thread-reel pulley? (a) an empty thread reel (b) a small paper cup (c) turmeric powder (d) string
6. 6.🧺 Which of these is needed for the thread-reel pulley? (a) a mirror (b) coins as the load (c) a balloon (d) turmeric powder
7. 7.🧺 Do we need coins as the load for the thread-reel pulley? (a) needed (b) not needed
8. 8.True or false: a crane is a lever. (a) False (b) True
9. 9.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is kept the same. (a) False (b) True
10. 10.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) an empty thread reel (c) coins as the load (d) a magnet
11. 11.True or false: a balloon is not needed for the thread-reel pulley. (a) False (b) True
12. 12.⚙️ Which of these is an inclined plane? (a) a tap handle (b) a see-saw (c) a ramp (d) a crowbar
13. 13.True or false: string is not needed for the thread-reel pulley. (a) False (b) True
14. 14.True or false: a battery cell is not needed for the thread-reel pulley. (a) False (b) True
15. 15.🧺 Do we need a small paper cup for the thread-reel pulley? (a) not needed (b) needed
16. 16.🧺 Which of these is not needed for the thread-reel pulley? (a) string (b) coins as the load (c) a balloon (d) a small paper cup
17. 17.🛟 Why should you not wrap the string around your finger? (a) it gets wet (b) it gets longer (c) it turns blue (d) it can hurt your finger
18. 18.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) up (b) down (c) sideways (d) in a circle
19. 19.⚙️ Which simple machine is a crane? (a) an inclined plane (b) a lever (c) a pulley (d) a wheel and axle
20. 20.True or false: a doorknob is a wheel and axle. (a) True (b) False
21. 21.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a mirror (b) coins as the load (c) string (d) an empty thread reel
23. 23.⚙️ Which simple machine is a spoon lifting a lid? (a) a lever (b) a pulley (c) an inclined plane (d) a wheel and axle
24. 24.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the lifting height”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.⚙️ Which simple machine is a crowbar? (a) an inclined plane (b) a pulley (c) a wheel and axle (d) a lever
26. 26.🔮 Predict: you add a moving pulley that holds the cup. The pull needed becomes ___. (a) the same (b) double (c) zero (d) about half
27. 27.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the lifting height is kept the same. (a) False (b) True
28. 28.🛟 Why should you never stand under a load being lifted? (a) it might sing (b) it is magnetic (c) it could fall on you (d) it gets hot
29. 29.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) an empty thread reel (c) string (d) a magnet
30. 30.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is what we measure. (a) False (b) True
31. 31.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) a mirror (c) string (d) a pencil
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) a small paper cup (c) a battery cell (d) a magnet
34. 34.🔮 Predict: you add more coins to the cup. Pulling it up gets ___. (a) the same (b) impossible (c) harder (d) easier
35. 35.📘 A pulley is a wheel with a groove for a ___. (a) battery (b) magnet (c) nail (d) rope
36. 36.⚖️ 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 change it (b) we keep it the same (c) we measure it
37. 37.True or false: a balloon is needed for the thread-reel pulley. (a) True (b) False
38. 38.🧺 Which of these is not needed for the thread-reel pulley? (a) coins as the load (b) a pencil (c) a battery cell (d) string
39. 39.⚙️ Which of these is a lever? (a) a tap handle (b) a sloping road (c) a bottle opener (d) a crane
40. 40.🇮🇳 Where do we see a pulley at school on Independence Day? (a) in the tap (b) on the flagpole (c) on the blackboard (d) on the bench

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