Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 296 · 40 questions

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.

1. 1.🏋️ A force of 350 N did 1050 J of work. How many metres did the object move?
2. 2.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 900 N box up it, in newtons? (ideal ramp, no friction)
3. 3.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 2550 N box up it, in newtons? (ideal ramp, no friction)
4. 4.🏋️ A 2 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
5. 5.🏋️ A force of 460 N pushes a cart 5 m along the floor. How much work is done, in joules?
6. 6.🏋️ A machine lifts a load of 1000 N when you push with 200 N. What is its mechanical advantage (MA)?
7. 7.🏋️ Can a simple machine reduce the work done? (a) yes, by half (b) no, work stays the same (c) yes, always (d) only on Mondays
8. 8.🏋️ A smooth ramp is 18 m long and rises 3 m. What effort pushes a 3000 N box up it, in newtons? (ideal ramp, no friction)
9. 9.🏋️ A force of 230 N pushes a cart 2 m along the floor. How much work is done, in joules?
10. 10.🏋️ A machine lifts a load of 780 N when you push with 130 N. What is its mechanical advantage (MA)?
11. 11.🏋️ Pushing a crate 8 m took 2400 J of work. What force was used, in newtons?
12. 12.🏋️ A force of 60 N pushes a cart 2 m along the floor. How much work is done, in joules?
13. 13.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
14. 14.🏋️ 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?
15. 15.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes a 1600 N box up it, in newtons? (ideal ramp, no friction)
16. 16.🏋️ A force of 10 N pushes a cart 1 m along the floor. How much work is done, in joules?
17. 17.🏋️ A force of 500 N did 3000 J of work. How many metres did the object move?
18. 18.🏋️ A 13 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
19. 19.🏋️ Pushing a crate 3 m took 1050 J of work. What force was used, in newtons?
20. 20.🏋️ A force of 490 N pushes a cart 5 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) without moving it (c) only upwards (d) through a distance
22. 22.🏋️ Pushing a crate 4 m took 440 J of work. What force was used, in newtons?
23. 23.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 1650 N box up it, in newtons? (ideal ramp, no friction)
24. 24.🏋️ 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?
25. 25.🏋️ Pushing a crate 7 m took 420 J of work. What force was used, in newtons?
26. 26.🏋️ A force of 370 N pushes a cart 1 m along the floor. How much work is done, in joules?
27. 27.🏋️ Pushing a crate 8 m took 2960 J of work. What force was used, in newtons?
28. 28.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 700 N box up it, in newtons? (ideal ramp, no friction)
29. 29.🏋️ A force of 120 N pushes a cart 5 m along the floor. How much work is done, in joules?
30. 30.🏋️ A force of 390 N did 2340 J of work. How many metres did the object move?
31. 31.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 3750 N box up it, in newtons? (ideal ramp, no friction)
32. 32.🏋️ A machine lifts a load of 20 N when you push with 10 N. What is its mechanical advantage (MA)?
33. 33.🏋️ 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?
34. 34.🏋️ Mechanical advantage (MA) = … (a) load × effort (b) load ÷ effort (c) effort ÷ load (d) load + effort
35. 35.🏋️ A machine lifts a load of 240 N when you push with 80 N. What is its mechanical advantage (MA)?
36. 36.🏋️ Pushing a crate 1 m took 230 J of work. What force was used, in newtons?
37. 37.🏋️ A 1 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
38. 38.🏋️ A smooth ramp is 12 m long and rises 2 m. What effort pushes a 4500 N box up it, in newtons? (ideal ramp, no friction)
39. 39.🏋️ Pushing a crate 10 m took 4400 J of work. What force was used, in newtons?
40. 40.🏋️ A 4 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?

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