Engineering Worksheet: Mechanical Advantage and Work

Engineering lesson 15: Mechanical advantage and work · Set 928 · 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 longer ramp to the same height needs … (a) more effort (b) less effort (c) no effort (d) the same effort
2. 2.🏋️ A force of 260 N pushes a cart 7 m along the floor. How much work is done, in joules?
3. 3.🏋️ A force of 160 N pushes a cart 5 m along the floor. How much work is done, in joules?
4. 4.🏋️ In which unit is work measured? (a) metre (m) (b) joule (J) (c) watt hour (d) newton (N)
5. 5.🏋️ A 14 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
6. 6.🏋️ A force of 380 N pushes a cart 10 m along the floor. How much work is done, in joules?
7. 7.🏋️ A machine lifts a load of 180 N when you push with 60 N. What is its mechanical advantage (MA)?
8. 8.🏋️ A 6 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
9. 9.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 5000 N box up it, in newtons? (ideal ramp, no friction)
10. 10.🏋️ A force of 80 N pushes a cart 1 m along the floor. How much work is done, in joules?
11. 11.🏋️ Pushing a crate 10 m took 300 J of work. What force was used, in newtons?
12. 12.🏋️ A force of 430 N pushes a cart 6 m along the floor. How much work is done, in joules?
13. 13.🏋️ A force of 180 N pushes a cart 9 m along the floor. How much work is done, in joules?
14. 14.🏋️ A force of 60 N pushes a cart 6 m along the floor. How much work is done, in joules?
15. 15.🏋️ A force of 330 N pushes a cart 9 m along the floor. How much work is done, in joules?
16. 16.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 200 N box up it, in newtons? (ideal ramp, no friction)
17. 17.🏋️ 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?
18. 18.🏋️ A force of 100 N did 200 J of work. How many metres did the object move?
19. 19.🏋️ A force of 160 N did 1120 J of work. How many metres did the object move?
20. 20.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
21. 21.🏋️ A machine lifts a load of 1140 N when you push with 190 N. What is its mechanical advantage (MA)?
22. 22.🏋️ A 16 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
23. 23.🏋️ Pushing a crate 1 m took 60 J of work. What force was used, in newtons?
24. 24.🏋️ A 19 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
25. 25.🏋️ A force of 240 N pushes a cart 10 m along the floor. How much work is done, in joules?
26. 26.🏋️ A smooth ramp is 6 m long and rises 3 m. What effort pushes an 800 N box up it, in newtons? (ideal ramp, no friction)
27. 27.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 2600 N box up it, in newtons? (ideal ramp, no friction)
28. 28.🏋️ A force of 10 N did 80 J of work. How many metres did the object move?
29. 29.🏋️ A force of 110 N did 1100 J of work. How many metres did the object move?
30. 30.🏋️ A force of 280 N pushes a cart 8 m along the floor. How much work is done, in joules?
31. 31.🏋️ 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)
32. 32.🏋️ A force of 440 N pushes a cart 2 m along the floor. How much work is done, in joules?
33. 33.🏋️ Work is done when a force moves something … (a) without moving it (b) through a distance (c) very slowly (d) only upwards
34. 34.🏋️ 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?
35. 35.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) effort ÷ load (c) load × effort (d) load ÷ effort
36. 36.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 900 N box up it, in newtons? (ideal ramp, no friction)
37. 37.🏋️ A force of 40 N did 320 J of work. How many metres did the object move?
38. 38.🏋️ 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?
39. 39.🏋️ A machine lifts a load of 400 N when you push with 100 N. What is its mechanical advantage (MA)?
40. 40.🏋️ A force of 150 N pushes a cart 5 m along the floor. How much work is done, in joules?

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