← Mechanical advantage and work lesson New set →

Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 270 · 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 200 N box up it, in newtons? (ideal ramp, no friction)
  2. 2.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 750 N box up it, in newtons? (ideal ramp, no friction)
  3. 3.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) joule (J) (d) watt hour
  4. 4.🏋️ A machine lifts a load of 270 N when you push with 90 N. What is its mechanical advantage (MA)?
  5. 5.🏋️ 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?
  6. 6.🏋️ A force of 60 N pushes a cart 1 m along the floor. How much work is done, in joules?
  7. 7.🏋️ Pushing a crate 3 m took 30 J of work. What force was used, in newtons?
  8. 8.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 600 N box up it, in newtons? (ideal ramp, no friction)
  9. 9.🏋️ A force of 230 N did 690 J of work. How many metres did the object move?
  10. 10.🏋️ A force of 130 N did 650 J of work. How many metres did the object move?
  11. 11.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load × effort (c) effort ÷ load (d) load + effort
  12. 12.🏋️ Pushing a crate 7 m took 840 J of work. What force was used, in newtons?
  13. 13.🏋️ A force of 330 N pushes a cart 4 m along the floor. How much work is done, in joules?
  14. 14.🏋️ A smooth ramp is 12 m long and rises 2 m. What effort pushes a 5400 N box up it, in newtons? (ideal ramp, no friction)
  15. 15.🏋️ A force of 250 N pushes a cart 3 m along the floor. How much work is done, in joules?
  16. 16.🏋️ Pushing a crate 5 m took 1600 J of work. What force was used, in newtons?
  17. 17.🏋️ A force of 10 N did 60 J of work. How many metres did the object move?
  18. 18.🏋️ Work is done when a force moves something … (a) only upwards (b) through a distance (c) very slowly (d) without moving it
  19. 19.🏋️ A force of 340 N pushes a cart 2 m along the floor. How much work is done, in joules?
  20. 20.🏋️ A machine lifts a load of 420 N when you push with 70 N. What is its mechanical advantage (MA)?
  21. 21.🏋️ A 12 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  22. 22.🏋️ A 9 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 force of 350 N pushes a cart 6 m along the floor. How much work is done, in joules?
  24. 24.🏋️ A force of 340 N did 2720 J of work. How many metres did the object move?
  25. 25.🏋️ A force of 50 N pushes a cart 3 m along the floor. How much work is done, in joules?
  26. 26.🏋️ A machine lifts a load of 340 N when you push with 170 N. What is its mechanical advantage (MA)?
  27. 27.🏋️ Pushing a crate 4 m took 680 J of work. What force was used, in newtons?
  28. 28.🏋️ A machine lifts a load of 1140 N when you push with 190 N. What is its mechanical advantage (MA)?
  29. 29.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
  30. 30.🏋️ A 7 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  31. 31.🏋️ A force of 150 N did 1350 J of work. How many metres did the object move?
  32. 32.🏋️ A force of 420 N pushes a cart 9 m along the floor. How much work is done, in joules?
  33. 33.🏋️ A force of 80 N did 640 J of work. How many metres did the object move?
  34. 34.🏋️ A force of 40 N did 40 J of work. How many metres did the object move?
  35. 35.🏋️ Pushing a crate 3 m took 1170 J of work. What force was used, in newtons?
  36. 36.🏋️ A 13 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  37. 37.🏋️ Pushing a crate 9 m took 2970 J of work. What force was used, in newtons?
  38. 38.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 750 N box up it, in newtons? (ideal ramp, no friction)
  39. 39.🏋️ 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?
  40. 40.🏋️ A force of 300 N pushes a cart 2 m along the floor. How much work is done, in joules?

Answer key

  1. 50
  2. 150
  3. joule (J)
  4. 3
  5. 300
  6. 60
  7. 10
  8. 200
  9. 3
  10. 5
  11. load ÷ effort
  12. 120
  13. 1320
  14. 900
  15. 750
  16. 320
  17. 6
  18. through a distance
  19. 680
  20. 6
  21. 120
  22. 180
  23. 2100
  24. 8
  25. 150
  26. 2
  27. 170
  28. 6
  29. 2
  30. 70
  31. 9
  32. 3780
  33. 8
  34. 1
  35. 390
  36. 260
  37. 330
  38. 250
  39. 340
  40. 600

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