← Mechanical advantage and work lesson New set →

Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 740 · 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 smooth ramp is 4 m long and rises 1 m. What effort pushes a 600 N box up it, in newtons? (ideal ramp, no friction)
  2. 2.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) without moving it (d) through a distance
  3. 3.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
  4. 4.🏋️ Pushing a crate 10 m took 2800 J of work. What force was used, in newtons?
  5. 5.🏋️ A force of 360 N pushes a cart 6 m along the floor. How much work is done, in joules?
  6. 6.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
  7. 7.🏋️ A 17 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  8. 8.🏋️ Pushing a crate 5 m took 100 J of work. What force was used, in newtons?
  9. 9.🏋️ Pushing a crate 7 m took 1470 J of work. What force was used, in newtons?
  10. 10.🏋️ A longer ramp to the same height needs … (a) no effort (b) less effort (c) the same effort (d) more effort
  11. 11.🏋️ A smooth ramp is 12 m long and rises 3 m. What effort pushes a 3200 N box up it, in newtons? (ideal ramp, no friction)
  12. 12.🏋️ 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)
  13. 13.🏋️ A machine lifts a load of 360 N when you push with 180 N. What is its mechanical advantage (MA)?
  14. 14.🏋️ A force of 40 N pushes a cart 1 m along the floor. How much work is done, in joules?
  15. 15.🏋️ A force of 70 N pushes a cart 2 m along the floor. How much work is done, in joules?
  16. 16.🏋️ A 9 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  17. 17.🏋️ A force of 150 N did 450 J of work. How many metres did the object move?
  18. 18.🏋️ A force of 90 N pushes a cart 9 m along the floor. How much work is done, in joules?
  19. 19.🏋️ An 18 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  20. 20.🏋️ 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?
  21. 21.🏋️ A force of 40 N did 80 J of work. How many metres did the object move?
  22. 22.🏋️ Pushing a crate 4 m took 1960 J of work. What force was used, in newtons?
  23. 23.🏋️ A force of 20 N pushes a cart 10 m along the floor. How much work is done, in joules?
  24. 24.🏋️ A force of 50 N pushes a cart 1 m along the floor. How much work is done, in joules?
  25. 25.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 200 N box up it, in newtons? (ideal ramp, no friction)
  26. 26.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1400 N box up it, in newtons? (ideal ramp, no friction)
  27. 27.🏋️ Pushing a crate 3 m took 330 J of work. What force was used, in newtons?
  28. 28.🏋️ A machine lifts a load of 720 N when you push with 120 N. What is its mechanical advantage (MA)?
  29. 29.🏋️ A force of 80 N pushes a cart 6 m along the floor. How much work is done, in joules?
  30. 30.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes an 800 N box up it, in newtons? (ideal ramp, no friction)
  31. 31.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
  32. 32.🏋️ Pushing a crate 8 m took 3840 J of work. What force was used, in newtons?
  33. 33.🏋️ A 4 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  34. 34.🏋️ A smooth ramp is 12 m long and rises 3 m. What effort pushes a 2000 N box up it, in newtons? (ideal ramp, no friction)
  35. 35.🏋️ A 6 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  36. 36.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 2000 N box up it, in newtons? (ideal ramp, no friction)
  37. 37.🏋️ Pushing a crate 4 m took 560 J of work. What force was used, in newtons?
  38. 38.🏋️ A 12 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  39. 39.🏋️ A force of 160 N did 1440 J of work. How many metres did the object move?
  40. 40.🏋️ A force of 270 N pushes a cart 5 m along the floor. How much work is done, in joules?

Answer key

  1. 150
  2. through a distance
  3. 600
  4. 280
  5. 2160
  6. 2
  7. 340
  8. 20
  9. 210
  10. less effort
  11. 800
  12. 850
  13. 2
  14. 40
  15. 140
  16. 360
  17. 3
  18. 810
  19. 360
  20. 140
  21. 2
  22. 490
  23. 200
  24. 50
  25. 100
  26. 700
  27. 110
  28. 6
  29. 480
  30. 400
  31. 100
  32. 480
  33. 120
  34. 500
  35. 300
  36. 400
  37. 140
  38. 360
  39. 9
  40. 1350

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