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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 708 · 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.🧺 Which of these is needed for the thread-reel pulley? (a) a balloon (b) a magnet (c) an empty thread reel (d) a battery cell
  2. 2.⚖️ 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
  3. 3.🔮 Predict: you add more coins to the cup. Pulling it up gets ___. (a) harder (b) impossible (c) easier (d) the same
  4. 4.⚙️ Which of these is a lever? (a) a sloping road (b) a slide (c) a see-saw (d) a ramp
  5. 5.True or false: a balloon is not needed for the thread-reel pulley. (a) False (b) True
  6. 6.🛟 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
  7. 7.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) a pencil (c) a balloon (d) string
  8. 8.⚙️ Which simple machine is a spoon lifting a lid? (a) a lever (b) a wheel and axle (c) an inclined plane (d) a pulley
  9. 9.⚙️ Which of these uses a pulley? (a) a crane (b) a doorknob (c) a spoon lifting a lid (d) a bottle opener
  10. 10.⚙️ Which of these uses a pulley? (a) a see-saw (b) a bottle opener (c) a doorknob (d) a well pulley
  11. 11.🧺 Do we need yeast for the thread-reel pulley? (a) needed (b) not needed
  12. 12.True or false: a steering wheel uses a pulley. (a) True (b) False
  13. 13.True or false: a mirror is needed for the thread-reel pulley. (a) True (b) False
  14. 14.True or false: a magnet is not needed for the thread-reel pulley. (a) True (b) False
  15. 15.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a pencil (b) coins as the load (c) a magnet (d) a small paper cup
  16. 16.⚖️ 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 change it (c) we measure it
  17. 17.🇮🇳 Where do we see a pulley at school on Independence Day? (a) on the blackboard (b) in the tap (c) on the flagpole (d) on the bench
  18. 18.⚖️ 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 cup of coins (b) how hard we must pull (c) number of pulleys (d) the same string
  19. 19.True or false: a see-saw is an inclined plane. (a) False (b) True
  20. 20.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) string (c) an empty thread reel (d) a magnet
  21. 21.True or false: a spoon lifting a lid is a lever. (a) True (b) False
  22. 22.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) a small paper cup (c) string (d) yeast
  23. 23.🏗️ What does a single fixed pulley mainly do? (a) adds weight (b) halves the weight (c) changes pull direction (d) makes it magnetic
  24. 24.⚙️ Which simple machine is a sloping road? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
  25. 25.⚖️ 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
  26. 26.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) string (c) an empty thread reel (d) a balloon
  27. 27.True or false: a crowbar is a lever. (a) True (b) False
  28. 28.🧺 Do we need a mirror for the thread-reel pulley? (a) not needed (b) needed
  29. 29.⚙️ Which simple machine is a flagpole? (a) a lever (b) an inclined plane (c) a wheel and axle (d) a pulley
  30. 30.⚙️ Which of these is an inclined plane? (a) a steering wheel (b) a crowbar (c) a see-saw (d) a slide
  31. 31.⚙️ Which of these is an inclined plane? (a) a sloping road (b) a crane (c) a tap handle (d) a flagpole
  32. 32.📘 A pulley is a wheel with a groove for a ___. (a) magnet (b) battery (c) rope (d) nail
  33. 33.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: number of pulleys is kept the same. (a) True (b) False
  34. 34.True or false: string is 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 string is what we measure. (a) True (b) False
  36. 36.🧺 Do we need a pencil for the thread-reel pulley? (a) needed (b) not needed
  37. 37.True or false: a see-saw is a lever. (a) False (b) True
  38. 38.⚙️ Which of these uses a pulley? (a) a tap handle (b) a flagpole (c) a see-saw (d) a doorknob
  39. 39.⚙️ Which of these is a lever? (a) a flagpole (b) a ramp (c) a crane (d) a crowbar
  40. 40.⚙️ Which simple machine is a see-saw? (a) an inclined plane (b) a lever (c) a wheel and axle (d) a pulley

Answer key

  1. an empty thread reel
  2. True
  3. harder
  4. a see-saw
  5. True
  6. it could fall on you
  7. a balloon
  8. a lever
  9. a crane
  10. a well pulley
  11. not needed
  12. False
  13. False
  14. True
  15. a magnet
  16. we keep it the same
  17. on the flagpole
  18. number of pulleys
  19. False
  20. a magnet
  21. True
  22. yeast
  23. changes pull direction
  24. an inclined plane
  25. True
  26. a balloon
  27. True
  28. not needed
  29. a pulley
  30. a slide
  31. a sloping road
  32. rope
  33. False
  34. True
  35. False
  36. needed
  37. True
  38. a flagpole
  39. a crowbar
  40. a lever

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