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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 45 · 40 questions
TalentJR

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.

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  1. 1.🧺 Do we need turmeric powder for the thread-reel pulley? (a) needed (b) not needed
  2. 2.⚙️ Which simple machine is a tap handle? (a) a lever (b) a pulley (c) an inclined plane (d) a wheel and axle
  3. 3.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) string (c) a magnet (d) a pencil
  4. 4.🔮 Predict: you add a moving pulley that holds the cup. The pull needed becomes ___. (a) zero (b) the same (c) double (d) about half
  5. 5.⚙️ Which of these is a wheel and axle? (a) a see-saw (b) a crane (c) a well pulley (d) a tap handle
  6. 6.🧺 Do we need a mirror for the thread-reel pulley? (a) not needed (b) needed
  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.⚙️ Which simple machine is a bottle opener? (a) a lever (b) a pulley (c) an inclined plane (d) a wheel and axle
  9. 9.⚙️ Which of these is an inclined plane? (a) a see-saw (b) a bottle opener (c) a doorknob (d) a ramp
  10. 10.⚖️ 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
  11. 11.🇮🇳 Where do we see a pulley at school on Independence Day? (a) in the tap (b) on the bench (c) on the blackboard (d) on the flagpole
  12. 12.⚙️ Which simple machine is a crane? (a) a wheel and axle (b) a lever (c) an inclined plane (d) a pulley
  13. 13.True or false: a flagpole uses a pulley. (a) False (b) True
  14. 14.🧺 Which of these is not needed for the thread-reel pulley? (a) an empty thread reel (b) coins as the load (c) a balloon (d) string
  15. 15.True or false: a bottle opener is an inclined plane. (a) False (b) True
  16. 16.🛟 Why should you not wrap the string around your finger? (a) it turns blue (b) it gets longer (c) it gets wet (d) it can hurt your finger
  17. 17.🧺 Do we need an empty thread reel for the thread-reel pulley? (a) not needed (b) needed
  18. 18.True or false: a sloping road is a wheel and axle. (a) False (b) True
  19. 19.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is what we measure? (a) the lifting height (b) how hard we must pull (c) number of pulleys (d) the same string
  20. 20.⚙️ Which simple machine is a slide? (a) a wheel and axle (b) an inclined plane (c) a pulley (d) a lever
  21. 21.⚖️ 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
  22. 22.🧺 Do we need a balloon for the thread-reel pulley? (a) needed (b) not needed
  23. 23.True or false: a bottle opener is a lever. (a) True (b) False
  24. 24.⚙️ Which simple machine is a spoon lifting a lid? (a) a wheel and axle (b) an inclined plane (c) a pulley (d) a lever
  25. 25.🧺 Do we need coins as the load for the thread-reel pulley? (a) not needed (b) needed
  26. 26.⚙️ Which simple machine is a steering wheel? (a) an inclined plane (b) a pulley (c) a lever (d) a wheel and axle
  27. 27.⚖️ 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 keep it the same (c) we measure it
  28. 28.True or false: a well pulley is a lever. (a) True (b) False
  29. 29.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) a battery cell (c) string (d) coins as the load
  30. 30.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) string (c) coins as the load (d) a balloon
  31. 31.⚙️ Which of these is a lever? (a) a sloping road (b) a well pulley (c) a doorknob (d) a crowbar
  32. 32.🧺 Which of these is needed for the thread-reel pulley? (a) a magnet (b) a balloon (c) a battery cell (d) an empty thread reel
  33. 33.🏗️ Why is a pulley used to lift water from a deep well? (a) pulling down is easier (b) the bucket floats (c) the rope gets shorter (d) water gets lighter
  34. 34.🧺 Do we need yeast for the thread-reel pulley? (a) needed (b) not needed
  35. 35.⚙️ Which of these uses a pulley? (a) a ramp (b) a flagpole (c) a crowbar (d) a bottle opener
  36. 36.🧺 Which of these is not needed for the thread-reel pulley? (a) string (b) a pencil (c) a mirror (d) an empty thread reel
  37. 37.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) a balloon (c) a small paper cup (d) a magnet
  38. 38.True or false: yeast is needed for the thread-reel pulley. (a) False (b) True
  39. 39.True or false: turmeric powder is not needed for the thread-reel pulley. (a) False (b) True
  40. 40.True or false: a tap handle uses a pulley. (a) False (b) True

Answer key

  1. not needed
  2. a wheel and axle
  3. a magnet
  4. about half
  5. a tap handle
  6. not needed
  7. True
  8. a lever
  9. a ramp
  10. True
  11. on the flagpole
  12. a pulley
  13. True
  14. a balloon
  15. False
  16. it can hurt your finger
  17. needed
  18. False
  19. how hard we must pull
  20. an inclined plane
  21. True
  22. not needed
  23. True
  24. a lever
  25. needed
  26. a wheel and axle
  27. we keep it the same
  28. False
  29. a battery cell
  30. a balloon
  31. a crowbar
  32. an empty thread reel
  33. pulling down is easier
  34. not needed
  35. a flagpole
  36. a mirror
  37. a small paper cup
  38. False
  39. True
  40. False

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