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Types of Levers Worksheet

Engineering lesson 12: Types of levers · Set 146 · 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 pair of scissors is a class 3 lever (effort in the middle). (a) False (b) True
  2. 2.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 2 (c) class 1
  3. 3.⚖️ Which class of lever is a lemon squeezer? (a) class 2 (b) class 3 (c) class 1
  4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 0 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  5. 5.True or false: a pair of pliers is a class 2 lever (load in the middle). (a) False (b) True
  6. 6.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 40 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  7. 7.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 40 cm and the load at 80 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  8. 8.True or false: a broom when sweeping is a class 3 lever (effort in the middle). (a) False (b) True
  9. 9.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) nothing (c) the load (d) the effort
  10. 10.True or false: a beam balance is a class 1 lever (fulcrum in the middle). (a) True (b) False
  11. 11.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 60 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  12. 12.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  13. 13.⚖️ 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 2 (c) class 3
  14. 14.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  15. 15.⚖️ Which class of lever is a fishing rod? (a) class 2 (b) class 3 (c) class 1
  16. 16.True or false: a crowbar is a class 1 lever (fulcrum in the middle). (a) False (b) True
  17. 17.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
  18. 18.True or false: a fishing rod is a class 1 lever (fulcrum in the middle). (a) True (b) False
  19. 19.True or false: a pair of kitchen tongs is a class 2 lever (load in the middle). (a) False (b) True
  20. 20.True or false: a seesaw is a class 3 lever (effort in the middle). (a) True (b) False
  21. 21.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  22. 22.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 3 (c) class 2
  23. 23.True or false: a pair of tweezers is a class 2 lever (load in the middle). (a) False (b) True
  24. 24.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  25. 25.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 60 cm and the load at 0 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
  26. 26.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  27. 27.True or false: a wheelbarrow is a class 1 lever (fulcrum in the middle). (a) False (b) True
  28. 28.True or false: your forearm is a class 2 lever (load in the middle). (a) True (b) False
  29. 29.True or false: a beam balance is a class 3 lever (effort in the middle). (a) True (b) False
  30. 30.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 50 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  32. 32.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 2 (c) class 1
  33. 33.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 10 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  35. 35.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) True (b) False
  36. 36.⚖️ 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 1 (b) class 3 (c) class 2
  37. 37.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) near the fulcrum (c) far from the fulcrum (d) on the rock
  38. 38.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the axle (d) the load
  39. 39.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 80 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3

Answer key

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

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