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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 306 · 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 a lever? (a) a crane (b) a slide (c) a tap handle (d) a crowbar
  2. 2.⚙️ Which simple machine is a steering wheel? (a) a wheel and axle (b) a pulley (c) a lever (d) an inclined plane
  3. 3.⚖️ 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 string (b) number of pulleys (c) how hard we must pull (d) the lifting height
  4. 4.⚙️ Which of these is a wheel and axle? (a) a crane (b) a see-saw (c) a well pulley (d) a tap handle
  5. 5.True or false: a bottle opener is a wheel and axle. (a) True (b) False
  6. 6.⚙️ Which of these is a lever? (a) a ramp (b) a crane (c) a doorknob (d) a bottle opener
  7. 7.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) a magnet (c) an empty thread reel (d) a pencil
  8. 8.🛟 Why should you never stand under a load being lifted? (a) it gets hot (b) it is magnetic (c) it might sing (d) it could fall on you
  9. 9.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) turmeric powder (b) a pencil (c) string (d) coins as the load
  10. 10.⚙️ Which of these is a lever? (a) a well pulley (b) a tap handle (c) a spoon lifting a lid (d) a doorknob
  11. 11.⚙️ Which of these uses a pulley? (a) a steering wheel (b) a see-saw (c) a doorknob (d) a flagpole
  12. 12.⚙️ Which of these uses a pulley? (a) a spoon lifting a lid (b) a crane (c) a crowbar (d) a steering wheel
  13. 13.True or false: a pencil is needed for the thread-reel pulley. (a) True (b) False
  14. 14.⚖️ 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 change it (c) we keep it the same
  15. 15.⚙️ Which of these is an inclined plane? (a) a bottle opener (b) a well pulley (c) a crowbar (d) a ramp
  16. 16.🧺 Which of these is needed for the thread-reel pulley? (a) turmeric powder (b) a magnet (c) a pencil (d) a battery cell
  17. 17.⚖️ 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
  18. 18.True or false: string is needed for the thread-reel pulley. (a) True (b) False
  19. 19.🧺 Do we need a battery cell for the thread-reel pulley? (a) needed (b) not needed
  20. 20.🧺 Do we need a balloon for the thread-reel pulley? (a) needed (b) not needed
  21. 21.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) a mirror (c) a small paper cup (d) a battery cell
  22. 22.⚖️ 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) True (b) False
  23. 23.⚙️ Which simple machine is a slide? (a) an inclined plane (b) a pulley (c) a lever (d) a wheel and axle
  24. 24.True or false: a ramp uses a pulley. (a) True (b) False
  25. 25.True or false: a see-saw uses a pulley. (a) False (b) True
  26. 26.True or false: coins as the load is not needed for the thread-reel pulley. (a) False (b) True
  27. 27.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) coins as the load (c) a pencil (d) a battery cell
  28. 28.⚖️ 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
  29. 29.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) sideways (b) down (c) up (d) in a circle
  30. 30.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) a balloon (c) coins as the load (d) an empty thread reel
  31. 31.True or false: a spoon lifting a lid uses a pulley. (a) True (b) False
  32. 32.⚙️ Which of these is an inclined plane? (a) a flagpole (b) a crowbar (c) a see-saw (d) a sloping road
  33. 33.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) coins as the load (c) a balloon (d) a magnet
  34. 34.🧺 Which of these is not needed for the thread-reel pulley? (a) turmeric powder (b) string (c) a pencil (d) coins as the load
  35. 35.True or false: a doorknob is an inclined plane. (a) True (b) False
  36. 36.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is kept the same? (a) number of pulleys (b) the same string (c) how hard we must pull
  37. 37.True or false: a crowbar is a wheel and axle. (a) True (b) False
  38. 38.🧺 Do we need an empty thread reel for the thread-reel pulley? (a) not needed (b) needed
  39. 39.🧺 Which of these is not needed for the thread-reel pulley? (a) coins as the load (b) string (c) a pencil (d) a battery cell
  40. 40.🧺 Which of these is needed for the thread-reel pulley? (a) a balloon (b) a mirror (c) an empty thread reel (d) a magnet

Answer key

  1. a crowbar
  2. a wheel and axle
  3. number of pulleys
  4. a tap handle
  5. False
  6. a bottle opener
  7. a magnet
  8. it could fall on you
  9. turmeric powder
  10. a spoon lifting a lid
  11. a flagpole
  12. a crane
  13. True
  14. we measure it
  15. a ramp
  16. a pencil
  17. True
  18. True
  19. not needed
  20. not needed
  21. a small paper cup
  22. True
  23. an inclined plane
  24. False
  25. False
  26. False
  27. a battery cell
  28. True
  29. down
  30. a balloon
  31. False
  32. a sloping road
  33. coins as the load
  34. turmeric powder
  35. False
  36. the same string
  37. False
  38. needed
  39. a battery cell
  40. an empty thread reel

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