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Types of Levers Worksheet

Engineering lesson 12: Types of levers · Set 613 · 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 tweezers is a class 1 lever (fulcrum in the middle). (a) True (b) False
  2. 2.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 0 cm and the load at 70 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 70 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  4. 4.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 70 cm and the load at 80 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  5. 5.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 50 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  6. 6.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the pulley (c) the fulcrum (d) the load
  7. 7.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) on the rock (c) far from the fulcrum (d) near the fulcrum
  8. 8.True or false: a beam balance is a class 3 lever (effort in the middle). (a) False (b) True
  9. 9.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  10. 10.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 1 (c) class 2
  11. 11.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 0 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  12. 12.True or false: a nutcracker is a class 1 lever (fulcrum in the middle). (a) True (b) False
  13. 13.⚖️ Which class of lever is a pair of pliers? (a) class 2 (b) class 1 (c) class 3
  14. 14.True or false: a seesaw is a class 3 lever (effort in the middle). (a) True (b) False
  15. 15.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 20 cm and the load at 0 cm. Which class of lever is it? (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.⚖️ Which class of lever is a bottle opener? (a) class 3 (b) class 2 (c) class 1
  18. 18.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  19. 19.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) False (b) True
  20. 20.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
  21. 21.⚖️ Which class of lever is a pair of tweezers? (a) class 2 (b) class 1 (c) class 3
  22. 22.⚖️ What is the pivot point of a lever called? (a) the axle (b) the effort (c) the fulcrum (d) the load
  23. 23.⚖️ 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 2 (c) class 3
  24. 24.⚖️ Along a straight bar, measured from the left end, the effort is at 10 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  25. 25.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 30 cm and the load at 80 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  26. 26.True or false: a crowbar is a class 2 lever (load in the middle). (a) False (b) True
  27. 27.True or false: your forearm is a class 1 lever (fulcrum in the middle). (a) True (b) False
  28. 28.⚖️ In a class 2 lever, what is in the middle? (a) the effort (b) the axle (c) the fulcrum (d) the load
  29. 29.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 10 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  30. 30.True or false: a beam balance is a class 2 lever (load in the middle). (a) True (b) False
  31. 31.True or false: a seesaw is a class 2 lever (load in the middle). (a) False (b) True
  32. 32.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 1 (b) class 2 (c) class 3
  33. 33.True or false: a pair of kitchen tongs is a class 3 lever (effort in the middle). (a) True (b) False
  34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 20 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  35. 35.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  36. 36.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) the fulcrum (c) the effort (d) nothing
  37. 37.⚖️ Along a straight bar, measured from the left end, the effort is at 0 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
  38. 38.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  39. 39.True or false: a wheelbarrow is a class 1 lever (fulcrum in the middle). (a) False (b) True
  40. 40.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 10 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3

Answer key

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

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