Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 155 · 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.⚖️ 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
2. 2.⚙️ Which of these is a lever? (a) a slide (b) a spoon lifting a lid (c) a tap handle (d) a flagpole
3. 3.⚖️ 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) False (b) True
4. 4.🇮🇳 Where do we see a pulley at school on Independence Day? (a) on the flagpole (b) on the blackboard (c) on the bench (d) in the tap
5. 5.True or false: a small paper cup is not needed for the thread-reel pulley. (a) False (b) True
6. 6.🧺 Do we need turmeric powder for the thread-reel pulley? (a) needed (b) not needed
7. 7.⚙️ Which of these is a wheel and axle? (a) a see-saw (b) a slide (c) a ramp (d) a tap handle
8. 8.📘 A pulley is a wheel with a groove for a ___. (a) rope (b) battery (c) magnet (d) nail
9. 9.⚙️ Which of these uses a pulley? (a) a sloping road (b) a tap handle (c) a crane (d) a crowbar
10. 10.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) coins as the load (c) a pencil (d) a balloon
11. 11.True or false: a battery cell is needed for the thread-reel pulley. (a) True (b) False
12. 12.True or false: string is needed for the thread-reel pulley. (a) False (b) True
13. 13.🧺 Which of these is needed for the thread-reel pulley? (a) turmeric powder (b) coins as the load (c) yeast (d) a magnet
14. 14.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the lifting height is what we measure. (a) False (b) True
15. 15.⚙️ Which of these is an inclined plane? (a) a slide (b) a bottle opener (c) a doorknob (d) a steering wheel
16. 16.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is what we measure? (a) the same string (b) how hard we must pull (c) the lifting height (d) number of pulleys
17. 17.True or false: a ramp is a wheel and axle. (a) True (b) False
18. 18.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) yeast (c) a pencil (d) coins as the load
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.True or false: a doorknob is a lever. (a) False (b) True
21. 21.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) a pencil (c) a battery cell (d) coins as the load
22. 22.True or false: coins as the load is not needed for the thread-reel pulley. (a) True (b) False
23. 23.🧺 Do we need an empty thread reel for the thread-reel pulley? (a) needed (b) not needed
24. 24.True or false: turmeric powder is not needed for the thread-reel pulley. (a) False (b) True
25. 25.⚙️ Which simple machine is a flagpole? (a) a wheel and axle (b) a lever (c) a pulley (d) an inclined plane
26. 26.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is the one thing we change? (a) number of pulleys (b) the same cup of coins (c) the same string (d) how hard we must pull
27. 27.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is what we measure. (a) False (b) True
28. 28.⚙️ Which simple machine is a well pulley? (a) a lever (b) an inclined plane (c) a wheel and axle (d) a pulley
29. 29.🧺 Which of these is needed for the thread-reel pulley? (a) a magnet (b) a battery cell (c) an empty thread reel (d) a balloon
30. 30.⚙️ Which of these is a lever? (a) a well pulley (b) a sloping road (c) a bottle opener (d) a tap handle
31. 31.True or false: a magnet is needed for the thread-reel pulley. (a) True (b) False
32. 32.True or false: a spoon lifting a lid is an inclined plane. (a) True (b) False
33. 33.True or false: yeast is needed for the thread-reel pulley. (a) True (b) False
34. 34.True or false: a pencil is not needed for the thread-reel pulley. (a) False (b) True
35. 35.🧺 Do we need string for the thread-reel pulley? (a) needed (b) not needed
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
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 measure it (b) we keep it the same (c) we change it
38. 38.🛟 Why should you not wrap the string around your finger? (a) it turns blue (b) it can hurt your finger (c) it gets wet (d) it gets longer
39. 39.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) string (c) a magnet (d) an empty thread reel

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