Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 662 · 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.🏋️ Pushing a crate 10 m took 4400 J of work. What force was used, in newtons?
2. 2.🏋️ 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?
3. 3.🏋️ Pushing a crate 2 m took 600 J of work. What force was used, in newtons?
4. 4.🏋️ A force of 210 N pushes a cart 6 m along the floor. How much work is done, in joules?
5. 5.🏋️ Pushing a crate 2 m took 200 J of work. What force was used, in newtons?
6. 6.🏋️ Pushing a crate 9 m took 3150 J of work. What force was used, in newtons?
7. 7.🏋️ A force of 310 N pushes a cart 5 m along the floor. How much work is done, in joules?
8. 8.🏋️ A force of 50 N pushes a cart 1 m along the floor. How much work is done, in joules?
9. 9.🏋️ A 3 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
10. 10.🏋️ In which unit is work measured? (a) newton (N) (b) joule (J) (c) metre (m) (d) watt hour
11. 11.🏋️ 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?
12. 12.🏋️ A force of 60 N did 180 J of work. How many metres did the object move?
13. 13.🏋️ Pushing a crate 5 m took 1850 J of work. What force was used, in newtons?
14. 14.🏋️ Pushing a crate 10 m took 2600 J of work. What force was used, in newtons?
15. 15.🏋️ A force of 350 N pushes a cart 2 m along the floor. How much work is done, in joules?
16. 16.🏋️ A 16 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
17. 17.🏋️ A force of 460 N pushes a cart 8 m along the floor. How much work is done, in joules?
18. 18.🏋️ Pushing a crate 6 m took 240 J of work. What force was used, in newtons?
19. 19.🏋️ A force of 270 N pushes a cart 6 m along the floor. How much work is done, in joules?
20. 20.🏋️ A 14 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
21. 21.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 1950 N box up it, in newtons? (ideal ramp, no friction)
22. 22.🏋️ A force of 200 N pushes a cart 10 m along the floor. How much work is done, in joules?
23. 23.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) load × effort (c) load ÷ effort (d) effort ÷ load
24. 24.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1000 N box up it, in newtons? (ideal ramp, no friction)
25. 25.🏋️ A 15 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
26. 26.🏋️ A machine lifts a load of 600 N when you push with 120 N. What is its mechanical advantage (MA)?
27. 27.🏋️ A 13 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
28. 28.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 5000 N box up it, in newtons? (ideal ramp, no friction)
29. 29.🏋️ A force of 80 N pushes a cart 3 m along the floor. How much work is done, in joules?
30. 30.🏋️ Work is done when a force moves something … (a) only upwards (b) through a distance (c) very slowly (d) without moving it
31. 31.🏋️ A machine lifts a load of 80 N when you push with 40 N. What is its mechanical advantage (MA)?
32. 32.🏋️ Pushing a crate 10 m took 1000 J of work. What force was used, in newtons?
33. 33.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 2250 N box up it, in newtons? (ideal ramp, no friction)
34. 34.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) only on Mondays (c) yes, by half (d) no, work stays the same
35. 35.🏋️ A machine lifts a load of 480 N when you push with 120 N. What is its mechanical advantage (MA)?
36. 36.🏋️ A 4 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
37. 37.🏋️ Pushing a crate 9 m took 990 J of work. What force was used, in newtons?
38. 38.🏋️ A force of 30 N pushes a cart 5 m along the floor. How much work is done, in joules?
39. 39.🏋️ A machine lifts a load of 60 N when you push with 20 N. What is its mechanical advantage (MA)?
40. 40.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 250 N box up it, in newtons? (ideal ramp, no friction)

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