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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 640 · 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.⚙️ Which of these is a wheel and axle? (a) a tap handle (b) a crowbar (c) a sloping road (d) a flagpole
  2. 2.⚙️ Which of these is a wheel and axle? (a) a steering wheel (b) a crane (c) a sloping road (d) a slide
  3. 3.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “number of pulleys”? (a) we keep it the same (b) we change it (c) we measure it
  4. 4.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) a pencil (c) yeast (d) coins as the load
  5. 5.True or false: a spoon lifting a lid is a lever. (a) True (b) False
  6. 6.True or false: a mirror is needed for the thread-reel pulley. (a) False (b) True
  7. 7.🧺 Do we need a magnet for the thread-reel pulley? (a) needed (b) not needed
  8. 8.⚙️ Which simple machine is a spoon lifting a lid? (a) a pulley (b) an inclined plane (c) a wheel and axle (d) a lever
  9. 9.🧺 Which of these is needed for the thread-reel pulley? (a) a pencil (b) a battery cell (c) a mirror (d) a magnet
  10. 10.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a magnet (b) coins as the load (c) a pencil (d) an empty thread reel
  11. 11.🔮 With a moving pulley, to lift the cup 10 cm you must pull the string about ___. (a) 5 cm (b) 20 cm (c) 40 cm (d) 10 cm
  12. 12.⚙️ Which of these uses a pulley? (a) a doorknob (b) a flagpole (c) a bottle opener (d) a ramp
  13. 13.🧺 Which of these is needed for the thread-reel pulley? (a) a battery cell (b) string (c) turmeric powder (d) yeast
  14. 14.🛟 Why should you never stand under a load being lifted? (a) it is magnetic (b) it might sing (c) it could fall on you (d) it gets hot
  15. 15.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
  16. 16.⚙️ Which of these is a lever? (a) a doorknob (b) a sloping road (c) a ramp (d) a see-saw
  17. 17.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) yeast (b) string (c) an empty thread reel (d) a small paper cup
  18. 18.🏗️ Why is a pulley used to lift water from a deep well? (a) pulling down is easier (b) water gets lighter (c) the bucket floats (d) the rope gets shorter
  19. 19.🧺 Which of these is not needed for the thread-reel pulley? (a) an empty thread reel (b) string (c) a magnet (d) coins as the load
  20. 20.True or false: a tap handle is a lever. (a) False (b) True
  21. 21.⚙️ Which simple machine is a ramp? (a) a wheel and axle (b) a pulley (c) a lever (d) an inclined plane
  22. 22.🧺 Do we need coins as the load for the thread-reel pulley? (a) needed (b) not needed
  23. 23.🧺 Do we need yeast for the thread-reel pulley? (a) needed (b) not needed
  24. 24.🧺 Which of these is needed for the thread-reel pulley? (a) a battery cell (b) coins as the load (c) yeast (d) turmeric powder
  25. 25.True or false: a bottle opener uses a pulley. (a) False (b) True
  26. 26.⚙️ Which of these is an inclined plane? (a) a slide (b) a see-saw (c) a crane (d) a doorknob
  27. 27.🧺 Which of these is needed for the thread-reel pulley? (a) a balloon (b) a battery cell (c) a mirror (d) a small paper cup
  28. 28.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) turmeric powder (b) a small paper cup (c) string (d) coins as the load
  29. 29.True or false: coins as the load is not needed for the thread-reel pulley. (a) True (b) False
  30. 30.True or false: a flagpole is a wheel and axle. (a) False (b) True
  31. 31.True or false: a mirror is not needed for the thread-reel pulley. (a) True (b) False
  32. 32.True or false: an empty thread reel is needed for the thread-reel pulley. (a) True (b) False
  33. 33.🔮 Predict: you add more coins to the cup. Pulling it up gets ___. (a) impossible (b) easier (c) harder (d) the same
  34. 34.⚖️ 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
  35. 35.⚙️ Which simple machine is a crane? (a) an inclined plane (b) a wheel and axle (c) a pulley (d) a lever
  36. 36.🧺 Do we need turmeric powder for the thread-reel pulley? (a) needed (b) not needed
  37. 37.⚙️ Which of these is an inclined plane? (a) a well pulley (b) a ramp (c) a crane (d) a spoon lifting a lid
  38. 38.🛟 Why should you not wrap the string around your finger? (a) it turns blue (b) it gets wet (c) it can hurt your finger (d) it gets longer
  39. 39.⚙️ Which of these is a lever? (a) a tap handle (b) a flagpole (c) a spoon lifting a lid (d) a crane
  40. 40.🧺 Do we need an empty thread reel for the thread-reel pulley? (a) not needed (b) needed

Answer key

  1. a tap handle
  2. a steering wheel
  3. we change it
  4. yeast
  5. True
  6. False
  7. not needed
  8. a lever
  9. a pencil
  10. a magnet
  11. 20 cm
  12. a flagpole
  13. string
  14. it could fall on you
  15. not needed
  16. a see-saw
  17. yeast
  18. pulling down is easier
  19. a magnet
  20. False
  21. an inclined plane
  22. needed
  23. not needed
  24. coins as the load
  25. False
  26. a slide
  27. a small paper cup
  28. turmeric powder
  29. False
  30. False
  31. True
  32. True
  33. harder
  34. True
  35. a pulley
  36. not needed
  37. a ramp
  38. it can hurt your finger
  39. a spoon lifting a lid
  40. needed

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