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Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 91 · 40 questions
TalentJR

Engineer's tip (Less force, more distance): MA = load ÷ effort. Work (J) = force (N) × distance (m); force = work ÷ distance; distance = work ÷ force. Ideal ramp: MA = length ÷ height, effort = load ÷ MA.

NameDateTime takenScore ___ / 40
  1. 1.🏋️ A force of 190 N did 1710 J of work. How many metres did the object move?
  2. 2.🏋️ Pushing a crate 10 m took 4600 J of work. What force was used, in newtons?
  3. 3.🏋️ A machine lifts a load of 160 N when you push with 40 N. What is its mechanical advantage (MA)?
  4. 4.🏋️ In which unit is work measured? (a) joule (J) (b) newton (N) (c) metre (m) (d) watt hour
  5. 5.🏋️ A force of 300 N pushes a cart 2 m along the floor. How much work is done, in joules?
  6. 6.🏋️ An 11 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  7. 7.🏋️ A longer ramp to the same height needs … (a) the same effort (b) more effort (c) less effort (d) no effort
  8. 8.🏋️ A 20 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  9. 9.🏋️ A force of 60 N pushes a cart 1 m along the floor. How much work is done, in joules?
  10. 10.🏋️ A machine lifts a load of 120 N when you push with 30 N. What is its mechanical advantage (MA)?
  11. 11.🏋️ Pushing a crate 6 m took 900 J of work. What force was used, in newtons?
  12. 12.🏋️ A force of 330 N did 2310 J of work. How many metres did the object move?
  13. 13.🏋️ An 8 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  14. 14.🏋️ Pushing a crate 3 m took 1050 J of work. What force was used, in newtons?
  15. 15.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load ÷ effort (c) effort ÷ load (d) load + effort
  16. 16.🏋️ A force of 100 N did 300 J of work. How many metres did the object move?
  17. 17.🏋️ A 13 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  18. 18.🏋️ A force of 330 N pushes a cart 6 m along the floor. How much work is done, in joules?
  19. 19.🏋️ A smooth ramp is 4 m long and rises 1 m. What effort pushes a 3400 N box up it, in newtons? (ideal ramp, no friction)
  20. 20.🏋️ A force of 420 N pushes a cart 6 m along the floor. How much work is done, in joules?
  21. 21.🏋️ Pushing a crate 8 m took 3840 J of work. What force was used, in newtons?
  22. 22.🏋️ A machine lifts a load of 1080 N when you push with 180 N. What is its mechanical advantage (MA)?
  23. 23.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
  24. 24.🏋️ A force of 410 N did 2460 J of work. How many metres did the object move?
  25. 25.🏋️ A force of 220 N pushes a cart 6 m along the floor. How much work is done, in joules?
  26. 26.🏋️ A machine lifts a load of 360 N when you push with 60 N. What is its mechanical advantage (MA)?
  27. 27.🏋️ A force of 280 N pushes a cart 9 m along the floor. How much work is done, in joules?
  28. 28.🏋️ A force of 460 N did 2760 J of work. How many metres did the object move?
  29. 29.🏋️ A 14 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  30. 30.🏋️ A 1 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  31. 31.🏋️ A force of 420 N did 2940 J of work. How many metres did the object move?
  32. 32.🏋️ A machine lifts a load of 400 N when you push with 80 N. What is its mechanical advantage (MA)?
  33. 33.🏋️ A force of 100 N pushes a cart 9 m along the floor. How much work is done, in joules?
  34. 34.🏋️ A 12 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  35. 35.🏋️ A force of 310 N pushes a cart 1 m along the floor. How much work is done, in joules?
  36. 36.🏋️ A machine lifts a load of 340 N when you push with 170 N. What is its mechanical advantage (MA)?
  37. 37.🏋️ A 20 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  38. 38.🏋️ A 12 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  39. 39.🏋️ Pushing a crate 2 m took 280 J of work. What force was used, in newtons?
  40. 40.🏋️ A force of 140 N pushes a cart 2 m along the floor. How much work is done, in joules?

Answer key

  1. 9
  2. 460
  3. 4
  4. joule (J)
  5. 600
  6. 220
  7. less effort
  8. 400
  9. 60
  10. 4
  11. 150
  12. 7
  13. 320
  14. 350
  15. load ÷ effort
  16. 3
  17. 130
  18. 1980
  19. 850
  20. 2520
  21. 480
  22. 6
  23. 600
  24. 6
  25. 1320
  26. 6
  27. 2520
  28. 6
  29. 280
  30. 20
  31. 7
  32. 5
  33. 900
  34. 480
  35. 310
  36. 2
  37. 1000
  38. 600
  39. 140
  40. 280

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