← Mechanical advantage and work lesson New set →

Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 908 · 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.🏋️ Pushing a crate 1 m took 410 J of work. What force was used, in newtons?
  2. 2.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1700 N box up it, in newtons? (ideal ramp, no friction)
  3. 3.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) effort ÷ load (c) load ÷ effort (d) load + effort
  4. 4.🏋️ A force of 330 N did 1320 J of work. How many metres did the object move?
  5. 5.🏋️ A force of 410 N did 4100 J of work. How many metres did the object move?
  6. 6.🏋️ A force of 180 N pushes a cart 6 m along the floor. How much work is done, in joules?
  7. 7.🏋️ Pushing a crate 1 m took 140 J of work. What force was used, in newtons?
  8. 8.🏋️ A force of 320 N pushes a cart 10 m along the floor. How much work is done, in joules?
  9. 9.🏋️ A force of 10 N did 60 J of work. How many metres did the object move?
  10. 10.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 1950 N box up it, in newtons? (ideal ramp, no friction)
  11. 11.🏋️ Pushing a crate 10 m took 3000 J of work. What force was used, in newtons?
  12. 12.🏋️ Pushing a crate 1 m took 280 J of work. What force was used, in newtons?
  13. 13.🏋️ Pushing a crate 7 m took 1540 J of work. What force was used, in newtons?
  14. 14.🏋️ An 11 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  15. 15.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
  16. 16.🏋️ A machine lifts a load of 220 N when you push with 110 N. What is its mechanical advantage (MA)?
  17. 17.🏋️ A force of 70 N pushes a cart 8 m along the floor. How much work is done, in joules?
  18. 18.🏋️ A machine lifts a load of 500 N when you push with 100 N. What is its mechanical advantage (MA)?
  19. 19.🏋️ 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?
  20. 20.🏋️ A force of 20 N pushes a cart 3 m along the floor. How much work is done, in joules?
  21. 21.🏋️ Work is done when a force moves something … (a) very slowly (b) through a distance (c) without moving it (d) only upwards
  22. 22.🏋️ A 7 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  23. 23.🏋️ A longer ramp to the same height needs … (a) less effort (b) no effort (c) more effort (d) the same effort
  24. 24.🏋️ A 10 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  25. 25.🏋️ Pushing a crate 5 m took 1050 J of work. What force was used, in newtons?
  26. 26.🏋️ A 17 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  27. 27.🏋️ A smooth ramp is 12 m long and rises 3 m. What effort pushes a 3400 N box up it, in newtons? (ideal ramp, no friction)
  28. 28.🏋️ A force of 490 N did 1960 J of work. How many metres did the object move?
  29. 29.🏋️ A force of 460 N did 2300 J of work. How many metres did the object move?
  30. 30.🏋️ A 13 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  31. 31.🏋️ A force of 210 N pushes a cart 3 m along the floor. How much work is done, in joules?
  32. 32.🏋️ A force of 110 N pushes a cart 1 m along the floor. How much work is done, in joules?
  33. 33.🏋️ A smooth ramp is 12 m long and rises 2 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
  34. 34.🏋️ A 10 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  35. 35.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
  36. 36.🏋️ Pushing a crate 6 m took 300 J of work. What force was used, in newtons?
  37. 37.🏋️ A force of 230 N did 2070 J of work. How many metres did the object move?
  38. 38.🏋️ A force of 380 N pushes a cart 6 m along the floor. How much work is done, in joules?
  39. 39.🏋️ Pushing a crate 6 m took 1620 J of work. What force was used, in newtons?
  40. 40.🏋️ A force of 260 N did 1820 J of work. How many metres did the object move?

Answer key

  1. 410
  2. 850
  3. load ÷ effort
  4. 4
  5. 10
  6. 1080
  7. 140
  8. 3200
  9. 6
  10. 650
  11. 300
  12. 280
  13. 220
  14. 440
  15. 200
  16. 2
  17. 560
  18. 5
  19. 320
  20. 60
  21. through a distance
  22. 140
  23. less effort
  24. 200
  25. 210
  26. 510
  27. 850
  28. 4
  29. 5
  30. 520
  31. 630
  32. 110
  33. 200
  34. 100
  35. 2
  36. 50
  37. 9
  38. 2280
  39. 270
  40. 7

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids