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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 96 · 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 an inclined plane? (a) a crowbar (b) a ramp (c) a steering wheel (d) a spoon lifting a lid
  2. 2.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is what we measure. (a) False (b) True
  3. 3.⚙️ Which of these is a wheel and axle? (a) a see-saw (b) a bottle opener (c) a spoon lifting a lid (d) a doorknob
  4. 4.⚖️ 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
  5. 5.True or false: a battery cell is needed for the thread-reel pulley. (a) True (b) False
  6. 6.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) up (b) sideways (c) down (d) in a circle
  7. 7.True or false: a flagpole is an inclined plane. (a) True (b) False
  8. 8.True or false: a well pulley is an inclined plane. (a) True (b) False
  9. 9.🔮 With a moving pulley, to lift the cup 10 cm you must pull the string about ___. (a) 40 cm (b) 20 cm (c) 5 cm (d) 10 cm
  10. 10.🧺 Do we need turmeric powder for the thread-reel pulley? (a) needed (b) not needed
  11. 11.True or false: a flagpole uses a pulley. (a) False (b) True
  12. 12.🧺 Do we need string for the thread-reel pulley? (a) not needed (b) needed
  13. 13.True or false: a magnet is needed for the thread-reel pulley. (a) False (b) True
  14. 14.⚙️ Which simple machine is a sloping road? (a) a wheel and axle (b) a lever (c) a pulley (d) an inclined plane
  15. 15.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) coins as the load (c) a small paper cup (d) yeast
  16. 16.⚙️ Which of these is a wheel and axle? (a) a tap handle (b) a crane (c) a see-saw (d) a slide
  17. 17.⚖️ 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
  18. 18.🧺 Do we need a mirror for the thread-reel pulley? (a) needed (b) not needed
  19. 19.⚙️ Which simple machine is a see-saw? (a) a pulley (b) a wheel and axle (c) an inclined plane (d) a lever
  20. 20.⚙️ Which of these is a lever? (a) a flagpole (b) a bottle opener (c) a doorknob (d) a well pulley
  21. 21.⚖️ 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
  22. 22.⚖️ 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
  23. 23.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: number of pulleys is what we measure. (a) False (b) True
  24. 24.⚙️ Which simple machine is a ramp? (a) a pulley (b) an inclined plane (c) a wheel and axle (d) a lever
  25. 25.True or false: a mirror is not needed for the thread-reel pulley. (a) False (b) True
  26. 26.🇮🇳 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
  27. 27.🛟 Why should you never stand under a load being lifted? (a) it could fall on you (b) it gets hot (c) it might sing (d) it is magnetic
  28. 28.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a battery cell (b) string (c) coins as the load (d) a small paper cup
  29. 29.True or false: a slide is an inclined plane. (a) False (b) True
  30. 30.🧺 Do we need a pencil for the thread-reel pulley? (a) needed (b) not needed
  31. 31.⚙️ Which simple machine is a crowbar? (a) a lever (b) a wheel and axle (c) an inclined plane (d) a pulley
  32. 32.True or false: a magnet is not needed for the thread-reel pulley. (a) False (b) True
  33. 33.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: how hard we must pull is the one thing we change. (a) False (b) True
  34. 34.🧺 Do we need yeast for the thread-reel pulley? (a) needed (b) not needed
  35. 35.⚖️ 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
  36. 36.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is the one thing we change. (a) True (b) False
  37. 37.⚙️ Which simple machine is a well pulley? (a) a pulley (b) a lever (c) a wheel and axle (d) an inclined plane
  38. 38.🔮 Predict: you add a moving pulley that holds the cup. The pull needed becomes ___. (a) zero (b) double (c) about half (d) the same
  39. 39.True or false: a crane is a lever. (a) True (b) False
  40. 40.True or false: a battery cell is not needed for the thread-reel pulley. (a) True (b) False

Answer key

  1. a ramp
  2. False
  3. a doorknob
  4. the same string
  5. False
  6. down
  7. False
  8. False
  9. 20 cm
  10. not needed
  11. True
  12. needed
  13. False
  14. an inclined plane
  15. yeast
  16. a tap handle
  17. we measure it
  18. not needed
  19. a lever
  20. a bottle opener
  21. True
  22. True
  23. False
  24. an inclined plane
  25. True
  26. on the flagpole
  27. it could fall on you
  28. a battery cell
  29. True
  30. needed
  31. a lever
  32. True
  33. False
  34. not needed
  35. we change it
  36. False
  37. a pulley
  38. about half
  39. False
  40. True

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