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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 552 · 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.

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

Answer key

  1. False
  2. False
  3. a pulley
  4. on the flagpole
  5. True
  6. False
  7. it could fall on you
  8. a pencil
  9. number of pulleys
  10. we keep it the same
  11. False
  12. needed
  13. True
  14. a doorknob
  15. a lever
  16. a sloping road
  17. a magnet
  18. the same string
  19. not needed
  20. a balloon
  21. False
  22. about half
  23. a magnet
  24. a balloon
  25. True
  26. we keep it the same
  27. harder
  28. True
  29. True
  30. needed
  31. we measure it
  32. True
  33. needed
  34. False
  35. False
  36. a small paper cup
  37. an empty thread reel
  38. a pulley
  39. False
  40. False

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