Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 270 · 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 spoon lifting a lid is a lever. (a) True (b) False
2. 2.⚖️ 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
3. 3.🔮 Predict: you add more coins to the cup. Pulling it up gets ___. (a) easier (b) impossible (c) harder (d) the same
4. 4.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is kept the same. (a) True (b) False
5. 5.🧺 Do we need a battery cell for the thread-reel pulley? (a) not needed (b) needed
6. 6.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: how hard we must pull is kept the same. (a) True (b) False
7. 7.True or false: a magnet is needed for the thread-reel pulley. (a) False (b) True
8. 8.True or false: a small paper cup is not needed for the thread-reel pulley. (a) False (b) True
9. 9.🧺 Do we need a magnet for the thread-reel pulley? (a) needed (b) not needed
10. 10.⚙️ Which of these is a wheel and axle? (a) a ramp (b) a steering wheel (c) a flagpole (d) a spoon lifting a lid
11. 11.🧺 Do we need a small paper cup for the thread-reel pulley? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the thread-reel pulley? (a) coins as the load (b) a pencil (c) a magnet (d) a small paper cup
13. 13.🧺 Which of these is needed for the thread-reel pulley? (a) a magnet (b) string (c) a balloon (d) turmeric powder
14. 14.True or false: a bottle opener is a lever. (a) True (b) False
15. 15.⚙️ Which simple machine is a bottle opener? (a) a wheel and axle (b) a lever (c) a pulley (d) an inclined plane
16. 16.⚙️ Which of these uses a pulley? (a) a flagpole (b) a steering wheel (c) a see-saw (d) a bottle opener
17. 17.🏗️ Why is a pulley used to lift water from a deep well? (a) the bucket floats (b) water gets lighter (c) pulling down is easier (d) the rope gets shorter
18. 18.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) sideways (b) down (c) up (d) in a circle
19. 19.⚙️ Which simple machine is a slide? (a) a wheel and axle (b) a lever (c) an inclined plane (d) a pulley
20. 20.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.True or false: a spoon lifting a lid uses a pulley. (a) False (b) True
22. 22.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) a pencil (c) turmeric powder (d) an empty thread reel
23. 23.True or false: turmeric powder is not needed for the thread-reel pulley. (a) True (b) False
24. 24.True or false: a steering wheel uses a pulley. (a) False (b) True
25. 25.True or false: an empty thread reel is needed for the thread-reel pulley. (a) True (b) False
26. 26.True or false: a small paper cup is needed for the thread-reel pulley. (a) False (b) True
27. 27.🧺 Which of these is needed for the thread-reel pulley? (a) an empty thread reel (b) turmeric powder (c) a magnet (d) a mirror
28. 28.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) turmeric powder (c) a small paper cup (d) a mirror
29. 29.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) a magnet (c) an empty thread reel (d) coins as the load
30. 30.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is what we measure? (a) how hard we must pull (b) number of pulleys (c) the same string (d) the same cup of coins
31. 31.🧺 Do we need a mirror for the thread-reel pulley? (a) needed (b) not needed
32. 32.⚙️ Which simple machine is a flagpole? (a) an inclined plane (b) a pulley (c) a wheel and axle (d) a lever
33. 33.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the lifting height”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is kept the same? (a) number of pulleys (b) how hard we must pull (c) the same cup of coins
35. 35.🛟 Why should you never stand under a load being lifted? (a) it gets hot (b) it could fall on you (c) it might sing (d) it is magnetic
36. 36.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
37. 37.True or false: a ramp is an inclined plane. (a) True (b) False
38. 38.⚙️ Which simple machine is a spoon lifting a lid? (a) an inclined plane (b) a pulley (c) a wheel and axle (d) a lever
39. 39.True or false: a magnet is not needed for the thread-reel pulley. (a) True (b) False
40. 40.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) an empty thread reel (d) string

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