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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 567 · 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 slide is an inclined plane. (a) True (b) False
  2. 2.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) string (b) coins as the load (c) a pencil (d) a magnet
  3. 3.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) a balloon (c) a battery cell (d) a pencil
  4. 4.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) a small paper cup (b) an empty thread reel (c) turmeric powder (d) coins as the load
  5. 5.⚙️ Which of these is a lever? (a) a bottle opener (b) a well pulley (c) a doorknob (d) a slide
  6. 6.⚙️ Which simple machine is a see-saw? (a) a pulley (b) a lever (c) a wheel and axle (d) an inclined plane
  7. 7.True or false: yeast is needed for the thread-reel pulley. (a) False (b) True
  8. 8.🧺 Do we need yeast for the thread-reel pulley? (a) not needed (b) needed
  9. 9.⚙️ Which simple machine is a ramp? (a) a lever (b) an inclined plane (c) a pulley (d) a wheel and axle
  10. 10.⚙️ Which simple machine is a slide? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
  11. 11.True or false: a spoon lifting a lid is a lever. (a) False (b) True
  12. 12.🧺 Do we need a pencil for the thread-reel pulley? (a) needed (b) not needed
  13. 13.🧺 Which of these is not needed for the thread-reel pulley? (a) a small paper cup (b) a balloon (c) a pencil (d) coins as the load
  14. 14.🛟 Why should you never stand under a load being lifted? (a) it gets hot (b) it could fall on you (c) it might sing (d) it is magnetic
  15. 15.True or false: a small paper cup is not needed for the thread-reel pulley. (a) True (b) False
  16. 16.⚙️ Which simple machine is a crowbar? (a) an inclined plane (b) a wheel and axle (c) a lever (d) a pulley
  17. 17.True or false: a bottle opener uses a pulley. (a) False (b) True
  18. 18.⚖️ 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
  19. 19.True or false: string is needed for the thread-reel pulley. (a) False (b) True
  20. 20.⚖️ 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
  21. 21.🧺 Which of these is needed for the thread-reel pulley? (a) a magnet (b) a battery cell (c) string (d) a balloon
  22. 22.True or false: a see-saw is a lever. (a) False (b) True
  23. 23.🏗️ What does a single fixed pulley mainly do? (a) halves the weight (b) adds weight (c) makes it magnetic (d) changes pull direction
  24. 24.🧺 Which of these is not needed for the thread-reel pulley? (a) string (b) yeast (c) a small paper cup (d) coins as the load
  25. 25.True or false: turmeric powder is needed for the thread-reel pulley. (a) True (b) False
  26. 26.🧺 Which of these is needed for the thread-reel pulley? (a) coins as the load (b) a magnet (c) a battery cell (d) a balloon
  27. 27.🧺 Which of these is needed for the thread-reel pulley? (a) a small paper cup (b) yeast (c) a mirror (d) a balloon
  28. 28.⚖️ 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) the lifting height (c) the same string (d) number of pulleys
  29. 29.True or false: a doorknob is a wheel and axle. (a) True (b) False
  30. 30.🔮 With a moving pulley, to lift the cup 10 cm you must pull the string about ___. (a) 5 cm (b) 10 cm (c) 20 cm (d) 40 cm
  31. 31.🧺 Do we need coins as the load for the thread-reel pulley? (a) needed (b) not needed
  32. 32.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
  33. 33.⚙️ Which simple machine is a steering wheel? (a) an inclined plane (b) a lever (c) a pulley (d) a wheel and axle
  34. 34.True or false: a pencil is not needed for the thread-reel pulley. (a) True (b) False
  35. 35.🧺 Which of these is not needed for the thread-reel pulley? (a) an empty thread reel (b) a small paper cup (c) a mirror (d) coins as the load
  36. 36.⚖️ 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) number of pulleys (c) the same cup of coins
  37. 37.🧺 Do we need string for the thread-reel pulley? (a) not needed (b) needed
  38. 38.True or false: a battery cell is not needed for the thread-reel pulley. (a) True (b) False
  39. 39.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) down (b) in a circle (c) sideways (d) up
  40. 40.⚙️ Which of these is an inclined plane? (a) a sloping road (b) a crane (c) a steering wheel (d) a flagpole

Answer key

  1. True
  2. a magnet
  3. a pencil
  4. turmeric powder
  5. a bottle opener
  6. a lever
  7. False
  8. not needed
  9. an inclined plane
  10. an inclined plane
  11. True
  12. needed
  13. a balloon
  14. it could fall on you
  15. False
  16. a lever
  17. False
  18. True
  19. True
  20. True
  21. string
  22. True
  23. changes pull direction
  24. yeast
  25. False
  26. coins as the load
  27. a small paper cup
  28. number of pulleys
  29. True
  30. 20 cm
  31. needed
  32. not needed
  33. a wheel and axle
  34. False
  35. a mirror
  36. the same cup of coins
  37. needed
  38. True
  39. down
  40. a sloping road

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