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Types of Levers Worksheet

Engineering lesson 12: Types of levers · Set 326 · 40 questions
TalentJR

Engineer's tip (What is in the middle?): Find the fulcrum, the load and the effort. Put them in order along the bar and look at the middle one. Fulcrum middle → class 1 · load middle → class 2 · effort middle → class 3.

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  1. 1.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) False (b) True
  2. 2.True or false: your forearm is a class 1 lever (fulcrum in the middle). (a) True (b) False
  3. 3.⚖️ Which class of lever is a lemon squeezer? (a) class 3 (b) class 2 (c) class 1
  4. 4.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the load (d) nothing
  5. 5.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 1 (c) class 2
  6. 6.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the rock (b) far from the fulcrum (c) on the fulcrum (d) near the fulcrum
  7. 7.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
  8. 8.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 70 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  9. 9.⚖️ In a class 2 lever, what is in the middle? (a) the load (b) the axle (c) the fulcrum (d) the effort
  10. 10.True or false: a pair of tweezers is a class 1 lever (fulcrum in the middle). (a) True (b) False
  11. 11.True or false: a pair of pliers is a class 3 lever (effort in the middle). (a) True (b) False
  12. 12.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 40 cm and the load at 60 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  13. 13.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 10 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  14. 14.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
  15. 15.⚖️ Which class of lever is a pair of scissors? (a) class 3 (b) class 2 (c) class 1
  16. 16.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 2 (c) class 3
  17. 17.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 60 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  18. 18.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  19. 19.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 80 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  20. 20.True or false: a nutcracker is a class 1 lever (fulcrum in the middle). (a) False (b) True
  21. 21.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) True (b) False
  22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 50 cm and the load at 80 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  23. 23.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  24. 24.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 100 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  25. 25.⚖️ Which class of lever is a beam balance? (a) class 2 (b) class 3 (c) class 1
  26. 26.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 0 cm and the load at 10 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  27. 27.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  28. 28.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 80 cm and the load at 50 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  29. 29.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 40 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  30. 30.⚖️ Which class of lever is a broom when sweeping? (a) class 3 (b) class 1 (c) class 2
  31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  32. 32.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 20 cm and the load at 10 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  33. 33.⚖️ Which class of lever is a fishing rod? (a) class 1 (b) class 3 (c) class 2
  34. 34.True or false: your forearm is a class 3 lever (effort in the middle). (a) True (b) False
  35. 35.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 2 (c) class 1
  36. 36.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  37. 37.⚖️ Which class of lever is a pair of tweezers? (a) class 2 (b) class 3 (c) class 1
  38. 38.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 1 (b) class 3 (c) class 2
  39. 39.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 0 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  40. 40.True or false: a pair of scissors is a class 1 lever (fulcrum in the middle). (a) False (b) True

Answer key

  1. True
  2. False
  3. class 2
  4. the fulcrum
  5. class 3
  6. far from the fulcrum
  7. True
  8. class 2
  9. the load
  10. False
  11. False
  12. class 1
  13. class 2
  14. True
  15. class 1
  16. class 2
  17. class 3
  18. class 2
  19. class 3
  20. False
  21. False
  22. class 1
  23. class 1
  24. class 2
  25. class 1
  26. class 2
  27. class 2
  28. class 2
  29. class 1
  30. class 3
  31. class 3
  32. class 1
  33. class 3
  34. True
  35. class 2
  36. class 1
  37. class 3
  38. class 3
  39. class 3
  40. True

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