← Mechanical advantage and work lesson New set →

Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 597 · 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 longer ramp to the same height needs … (a) no effort (b) the same effort (c) less effort (d) more effort
  2. 2.🏋️ A force of 120 N did 600 J of work. How many metres did the object move?
  3. 3.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
  4. 4.🏋️ A force of 280 N pushes a cart 2 m along the floor. How much work is done, in joules?
  5. 5.🏋️ A force of 20 N pushes a cart 5 m along the floor. How much work is done, in joules?
  6. 6.🏋️ Pushing a crate 3 m took 390 J of work. What force was used, in newtons?
  7. 7.🏋️ Pushing a crate 4 m took 1040 J of work. What force was used, in newtons?
  8. 8.🏋️ A force of 430 N pushes a cart 2 m along the floor. How much work is done, in joules?
  9. 9.🏋️ A force of 120 N pushes a cart 5 m along the floor. How much work is done, in joules?
  10. 10.🏋️ A 10 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  11. 11.🏋️ Pushing a crate 10 m took 2100 J of work. What force was used, in newtons?
  12. 12.🏋️ A force of 230 N pushes a cart 9 m along the floor. How much work is done, in joules?
  13. 13.🏋️ A force of 110 N pushes a cart 9 m along the floor. How much work is done, in joules?
  14. 14.🏋️ 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)
  15. 15.🏋️ A machine lifts a load of 380 N when you push with 190 N. What is its mechanical advantage (MA)?
  16. 16.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1900 N box up it, in newtons? (ideal ramp, no friction)
  17. 17.🏋️ In which unit is work measured? (a) newton (N) (b) metre (m) (c) joule (J) (d) watt hour
  18. 18.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 2000 N box up it, in newtons? (ideal ramp, no friction)
  19. 19.🏋️ A 19 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  20. 20.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 500 N box up it, in newtons? (ideal ramp, no friction)
  21. 21.🏋️ A force of 430 N did 2150 J of work. How many metres did the object move?
  22. 22.🏋️ A force of 490 N pushes a cart 3 m along the floor. How much work is done, in joules?
  23. 23.🏋️ A force of 420 N pushes a cart 1 m along the floor. How much work is done, in joules?
  24. 24.🏋️ Pushing a crate 10 m took 1500 J of work. What force was used, in newtons?
  25. 25.🏋️ Pushing a crate 2 m took 940 J of work. What force was used, in newtons?
  26. 26.🏋️ A force of 350 N pushes a cart 7 m along the floor. How much work is done, in joules?
  27. 27.🏋️ A force of 280 N did 2520 J of work. How many metres did the object move?
  28. 28.🏋️ An 18 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  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 machine lifts a load of 360 N when you push with 180 N. What is its mechanical advantage (MA)?
  31. 31.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) very slowly (d) through a distance
  32. 32.🏋️ A force of 390 N did 2340 J of work. How many metres did the object move?
  33. 33.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load + effort (c) load ÷ effort (d) effort ÷ load
  34. 34.🏋️ A force of 80 N pushes a cart 3 m along the floor. How much work is done, in joules?
  35. 35.🏋️ A smooth ramp is 4 m long and rises 1 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
  36. 36.🏋️ A force of 90 N did 540 J of work. How many metres did the object move?
  37. 37.🏋️ A 2 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  38. 38.🏋️ Pushing a crate 2 m took 500 J of work. What force was used, in newtons?
  39. 39.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1800 N box up it, in newtons? (ideal ramp, no friction)
  40. 40.🏋️ Pushing a crate 5 m took 2350 J of work. What force was used, in newtons?

Answer key

  1. less effort
  2. 5
  3. 150
  4. 560
  5. 100
  6. 130
  7. 260
  8. 860
  9. 600
  10. 500
  11. 210
  12. 2070
  13. 990
  14. 400
  15. 2
  16. 950
  17. joule (J)
  18. 1000
  19. 950
  20. 100
  21. 5
  22. 1470
  23. 420
  24. 150
  25. 470
  26. 2450
  27. 9
  28. 720
  29. 280
  30. 2
  31. through a distance
  32. 6
  33. load ÷ effort
  34. 240
  35. 250
  36. 6
  37. 20
  38. 250
  39. 900
  40. 470

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