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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 364 · 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 small paper cup is not needed for the thread-reel pulley. (a) False (b) True
  2. 2.🛟 Why should you never stand under a load being lifted? (a) it gets hot (b) it might sing (c) it is magnetic (d) it could fall on you
  3. 3.⚙️ Which simple machine is a crane? (a) a lever (b) a wheel and axle (c) an inclined plane (d) a pulley
  4. 4.⚙️ Which simple machine is a crowbar? (a) a wheel and axle (b) a lever (c) an inclined plane (d) a pulley
  5. 5.True or false: a balloon is needed for the thread-reel pulley. (a) True (b) False
  6. 6.🧺 Do we need yeast for the thread-reel pulley? (a) needed (b) not needed
  7. 7.🛟 Why should you not wrap the string around your finger? (a) it gets wet (b) it turns blue (c) it can hurt your finger (d) it gets longer
  8. 8.True or false: a mirror is not needed for the thread-reel pulley. (a) True (b) False
  9. 9.⚖️ 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
  10. 10.True or false: a pencil is needed for the thread-reel pulley. (a) False (b) True
  11. 11.🇮🇳 Where do we see a pulley at school on Independence Day? (a) on the blackboard (b) on the flagpole (c) on the bench (d) in the tap
  12. 12.🧺 Which of these is not needed for the thread-reel pulley? (a) an empty thread reel (b) yeast (c) string (d) a pencil
  13. 13.⚙️ Which of these is a wheel and axle? (a) a doorknob (b) a bottle opener (c) a crane (d) a see-saw
  14. 14.⚙️ Which simple machine is a bottle opener? (a) an inclined plane (b) a pulley (c) a wheel and axle (d) a lever
  15. 15.🔮 With a moving pulley, to lift the cup 10 cm you must pull the string about ___. (a) 40 cm (b) 10 cm (c) 5 cm (d) 20 cm
  16. 16.True or false: a magnet is needed for the thread-reel pulley. (a) True (b) False
  17. 17.⚙️ Which simple machine is a tap handle? (a) a lever (b) a wheel and axle (c) an inclined plane (d) a pulley
  18. 18.🔮 Predict: you add more coins to the cup. Pulling it up gets ___. (a) harder (b) easier (c) the same (d) impossible
  19. 19.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a balloon (b) a small paper cup (c) an empty thread reel (d) a pencil
  20. 20.⚙️ Which simple machine is a well pulley? (a) a wheel and axle (b) a pulley (c) an inclined plane (d) a lever
  21. 21.⚙️ Which of these uses a pulley? (a) a crowbar (b) a ramp (c) a crane (d) a spoon lifting a lid
  22. 22.🏗️ Why is a pulley used to lift water from a deep well? (a) the bucket floats (b) pulling down is easier (c) the rope gets shorter (d) water gets lighter
  23. 23.⚖️ 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 measure it (c) we change it
  24. 24.📘 A pulley is a wheel with a groove for a ___. (a) magnet (b) rope (c) nail (d) battery
  25. 25.🧺 Which of these is not needed for the thread-reel pulley? (a) a mirror (b) coins as the load (c) a small paper cup (d) an empty thread reel
  26. 26.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is kept the same. (a) False (b) True
  27. 27.🧺 Do we need a small paper cup for the thread-reel pulley? (a) not needed (b) needed
  28. 28.True or false: a small paper cup is needed for the thread-reel pulley. (a) True (b) False
  29. 29.⚙️ Which simple machine is a flagpole? (a) a lever (b) a wheel and axle (c) an inclined plane (d) a pulley
  30. 30.🧺 Do we need string for the thread-reel pulley? (a) not needed (b) needed
  31. 31.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) coins as the load (b) a pencil (c) yeast (d) a small paper cup
  32. 32.⚙️ Which of these is an inclined plane? (a) a see-saw (b) a crane (c) a sloping road (d) a flagpole
  33. 33.True or false: a crane uses a pulley. (a) False (b) True
  34. 34.🧺 Do we need a mirror for the thread-reel pulley? (a) needed (b) not needed
  35. 35.True or false: a battery cell is needed for the thread-reel pulley. (a) False (b) True
  36. 36.⚙️ Which of these is an inclined plane? (a) a crane (b) a spoon lifting a lid (c) a ramp (d) a see-saw
  37. 37.True or false: a spoon lifting a lid is a lever. (a) False (b) True
  38. 38.True or false: a spoon lifting a lid uses a pulley. (a) True (b) False
  39. 39.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the same cup of coins”? (a) we measure it (b) we change it (c) we keep it the same
  40. 40.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is kept the same? (a) the lifting height (b) number of pulleys (c) how hard we must pull

Answer key

  1. False
  2. it could fall on you
  3. a pulley
  4. a lever
  5. False
  6. not needed
  7. it can hurt your finger
  8. True
  9. we keep it the same
  10. True
  11. on the flagpole
  12. yeast
  13. a doorknob
  14. a lever
  15. 20 cm
  16. False
  17. a wheel and axle
  18. harder
  19. a balloon
  20. a pulley
  21. a crane
  22. pulling down is easier
  23. we change it
  24. rope
  25. a mirror
  26. True
  27. needed
  28. True
  29. a pulley
  30. needed
  31. yeast
  32. a sloping road
  33. True
  34. not needed
  35. False
  36. a ramp
  37. True
  38. False
  39. we keep it the same
  40. the lifting height

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