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Pulley STEM Project Worksheet

Science experiments lesson 25: Thread-reel pulley · Set 116 · 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 spoon lifting a lid is a lever. (a) False (b) True
  2. 2.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “number of pulleys”? (a) we change it (b) we keep it the same (c) we measure it
  3. 3.🧺 Do we need string for the thread-reel pulley? (a) not needed (b) needed
  4. 4.🏗️ With one fixed pulley, which way do you pull the string to lift the cup? (a) sideways (b) in a circle (c) down (d) up
  5. 5.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the lifting height is kept the same. (a) True (b) False
  6. 6.📘 A pulley is a wheel with a groove for a ___. (a) battery (b) magnet (c) nail (d) rope
  7. 7.True or false: a slide is an inclined plane. (a) False (b) True
  8. 8.True or false: a crane is a lever. (a) True (b) False
  9. 9.⚖️ 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 string
  10. 10.🛟 Why should you not wrap the string around your finger? (a) it turns blue (b) it gets wet (c) it gets longer (d) it can hurt your finger
  11. 11.🛟 Why should you never stand under a load being lifted? (a) it could fall on you (b) it is magnetic (c) it gets hot (d) it might sing
  12. 12.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) string (c) an empty thread reel (d) a battery cell
  13. 13.True or false: a well pulley uses a pulley. (a) False (b) True
  14. 14.🧺 Do we need a balloon for the thread-reel pulley? (a) not needed (b) needed
  15. 15.🧺 Do we need a magnet for the thread-reel pulley? (a) not needed (b) needed
  16. 16.True or false: turmeric powder is not needed for the thread-reel pulley. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the thread-reel pulley? (a) a pencil (b) string (c) turmeric powder (d) an empty thread reel
  18. 18.⚙️ Which simple machine is a flagpole? (a) a pulley (b) a lever (c) an inclined plane (d) a wheel and axle
  19. 19.⚖️ 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) the same cup of coins (c) number of pulleys (d) how hard we must pull
  20. 20.True or false: a tap handle is a wheel and axle. (a) False (b) True
  21. 21.True or false: a magnet is needed for the thread-reel pulley. (a) False (b) True
  22. 22.⚙️ Which of these is an inclined plane? (a) a crowbar (b) a doorknob (c) a flagpole (d) a sloping road
  23. 23.⚙️ Which simple machine is a doorknob? (a) a lever (b) a wheel and axle (c) a pulley (d) an inclined plane
  24. 24.🔮 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
  25. 25.🧺 Do we need a battery cell for the thread-reel pulley? (a) not needed (b) needed
  26. 26.⚖️ 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
  27. 27.🧺 Which of these is needed for the thread-reel pulley? (a) yeast (b) turmeric powder (c) a battery cell (d) a pencil
  28. 28.True or false: a sloping road is a lever. (a) False (b) True
  29. 29.⚙️ Which of these is a lever? (a) a slide (b) a see-saw (c) a ramp (d) a steering wheel
  30. 30.⚙️ Which of these uses a pulley? (a) a crane (b) a slide (c) a spoon lifting a lid (d) a see-saw
  31. 31.⚙️ Which of these uses a pulley? (a) a ramp (b) a sloping road (c) a bottle opener (d) a flagpole
  32. 32.True or false: a tap handle uses a pulley. (a) True (b) False
  33. 33.🧺 Three of these are needed for the thread-reel pulley. Which one is NOT needed? (a) an empty thread reel (b) a pencil (c) a battery cell (d) coins as the load
  34. 34.⚙️ Which simple machine is a slide? (a) a wheel and axle (b) an inclined plane (c) a lever (d) a pulley
  35. 35.🧺 Which of these is needed for the thread-reel pulley? (a) a balloon (b) an empty thread reel (c) a magnet (d) a battery cell
  36. 36.🧺 Do we need turmeric powder for the thread-reel pulley? (a) needed (b) not needed
  37. 37.⚖️ Fair test — is lifting the cup easier with one pulley or with two? Which of these is what we measure? (a) number of pulleys (b) how hard we must pull (c) the lifting height (d) the same cup of coins
  38. 38.🧺 Which of these is needed for the thread-reel pulley? (a) coins as the load (b) a battery cell (c) a balloon (d) turmeric powder
  39. 39.⚙️ Which simple machine is a tap handle? (a) a pulley (b) a wheel and axle (c) a lever (d) an inclined plane
  40. 40.True or false: yeast is not needed for the thread-reel pulley. (a) True (b) False

Answer key

  1. True
  2. we change it
  3. needed
  4. down
  5. True
  6. rope
  7. True
  8. False
  9. the same string
  10. it can hurt your finger
  11. it could fall on you
  12. a battery cell
  13. True
  14. not needed
  15. not needed
  16. True
  17. turmeric powder
  18. a pulley
  19. number of pulleys
  20. True
  21. False
  22. a sloping road
  23. a wheel and axle
  24. 20 cm
  25. not needed
  26. True
  27. a pencil
  28. False
  29. a see-saw
  30. a crane
  31. a flagpole
  32. False
  33. a battery cell
  34. an inclined plane
  35. an empty thread reel
  36. not needed
  37. how hard we must pull
  38. coins as the load
  39. a wheel and axle
  40. True

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