← Mechanical advantage and work lesson New set →

Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 466 · 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 machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
  2. 2.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 900 N box up it, in newtons? (ideal ramp, no friction)
  3. 3.🏋️ A force of 250 N did 1250 J of work. How many metres did the object move?
  4. 4.🏋️ Pushing a crate 6 m took 180 J of work. What force was used, in newtons?
  5. 5.🏋️ A 17 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  6. 6.🏋️ A 1 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  7. 7.🏋️ A machine lifts a load of 40 N when you push with 10 N. What is its mechanical advantage (MA)?
  8. 8.🏋️ A force of 410 N pushes a cart 5 m along the floor. How much work is done, in joules?
  9. 9.🏋️ A force of 440 N did 440 J of work. How many metres did the object move?
  10. 10.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load × effort (c) load + effort (d) effort ÷ load
  11. 11.🏋️ Pushing a crate 5 m took 1350 J of work. What force was used, in newtons?
  12. 12.🏋️ A force of 240 N pushes a cart 10 m along the floor. How much work is done, in joules?
  13. 13.🏋️ A force of 80 N pushes a cart 10 m along the floor. How much work is done, in joules?
  14. 14.🏋️ Pushing a crate 1 m took 310 J of work. What force was used, in newtons?
  15. 15.🏋️ An 18 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  16. 16.🏋️ A machine lifts a load of 200 N when you push with 100 N. What is its mechanical advantage (MA)?
  17. 17.🏋️ A machine lifts a load of 340 N when you push with 170 N. What is its mechanical advantage (MA)?
  18. 18.🏋️ A force of 40 N pushes a cart 9 m along the floor. How much work is done, in joules?
  19. 19.🏋️ A machine lifts a load of 330 N when you push with 110 N. What is its mechanical advantage (MA)?
  20. 20.🏋️ 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?
  21. 21.🏋️ Pushing a crate 2 m took 780 J of work. What force was used, in newtons?
  22. 22.🏋️ Pushing a crate 1 m took 170 J of work. What force was used, in newtons?
  23. 23.🏋️ In which unit is work measured? (a) metre (m) (b) newton (N) (c) joule (J) (d) watt hour
  24. 24.🏋️ An 11 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  25. 25.🏋️ A machine lifts a load of 760 N when you push with 190 N. What is its mechanical advantage (MA)?
  26. 26.🏋️ A force of 380 N did 1900 J of work. How many metres did the object move?
  27. 27.🏋️ Work is done when a force moves something … (a) very slowly (b) without moving it (c) through a distance (d) only upwards
  28. 28.🏋️ A force of 160 N pushes a cart 9 m along the floor. How much work is done, in joules?
  29. 29.🏋️ A 10 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  30. 30.🏋️ A 19 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  31. 31.🏋️ A force of 190 N pushes a cart 1 m along the floor. How much work is done, in joules?
  32. 32.🏋️ 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)
  33. 33.🏋️ A force of 430 N pushes a cart 10 m along the floor. How much work is done, in joules?
  34. 34.🏋️ A force of 250 N pushes a cart 4 m along the floor. How much work is done, in joules?
  35. 35.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 3000 N box up it, in newtons? (ideal ramp, no friction)
  36. 36.🏋️ A force of 140 N pushes a cart 7 m along the floor. How much work is done, in joules?
  37. 37.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 100 N box up it, in newtons? (ideal ramp, no friction)
  38. 38.🏋️ Pushing a crate 6 m took 840 J of work. What force was used, in newtons?
  39. 39.🏋️ A force of 50 N pushes a cart 8 m along the floor. How much work is done, in joules?
  40. 40.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)

Answer key

  1. 2
  2. 150
  3. 5
  4. 30
  5. 170
  6. 50
  7. 4
  8. 2050
  9. 1
  10. load ÷ effort
  11. 270
  12. 2400
  13. 800
  14. 310
  15. 180
  16. 2
  17. 2
  18. 360
  19. 3
  20. 220
  21. 390
  22. 170
  23. joule (J)
  24. 110
  25. 4
  26. 5
  27. through a distance
  28. 1440
  29. 400
  30. 570
  31. 190
  32. 100
  33. 4300
  34. 1000
  35. 1000
  36. 980
  37. 50
  38. 140
  39. 400
  40. 50

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