Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 522 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
2. 2.🔢 To follow the engineering design process, which comes first: “Ask” or “Plan”? (a) Plan (b) Ask
3. 3.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) reduce (c) recycle
4. 4.True or false: to change only one thing is poor testing. (a) False (b) True
5. 5.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 2400 N box up it, in newtons? (ideal ramp, no friction)
6. 6.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) effort ÷ load (c) load × effort (d) load ÷ effort
7. 7.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
8. 8.⚖️ In a class 2 lever, what is in the middle? (a) the fulcrum (b) the axle (c) the load (d) the effort
9. 9.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
10. 10.🪝 A bucket weighing 100 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
11. 11.Which of these is a suspension bridge? (a) the longest spans of all (b) the simplest bridge (c) stones squeezed together (d) pushes out on its ends
12. 12.⚙️ A screw is really … (a) a kind of wheel (b) a ramp wrapped round (c) a bent lever (d) a tiny pulley
13. 13.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 40 cm and the load at 0 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
14. 14.⚖️ A lever bar balances. The load is 240 N at 40 cm from the fulcrum. The effort is 320 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
15. 15.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) to work alone (d) many skills and ideas
16. 16.⚖️ A lever bar balances. The load is 500 N at ? cm from the fulcrum. The effort is 300 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
17. 17.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1050 g. Does it meet the criterion? (a) Yes (b) No
18. 18.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
19. 19.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) only on Mondays (d) no, work stays the same
20. 20.🛠️ People need to go through a mountain. Which invention helps? (a) a bridge (b) a solar panel (c) a dam (d) a tunnel
21. 21.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) change lots at once (d) hide a failed test
22. 22.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
23. 23.Which need does a solar panel meet? (a) store water for summer (b) go through a mountain (c) talk to someone far away (d) make power from sunlight
24. 24.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 6 N, sandpaper 10 N, ice 3 N, a glass sheet 4 N. Which surface gave the least friction? (a) a glass sheet (b) ice (c) a carpet (d) sandpaper
25. 25.⚖️ Which class of lever is a crowbar? (a) class 3 (b) class 1 (c) class 2
26. 26.True or false: to tie back long hair is not safe. (a) False (b) True
27. 27.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 3 N, a carpet 6 N, sandpaper 7 N. How many newtons more were needed on sandpaper than on a glass sheet?
28. 28.True or false: a magnifier lens needs a flexible material. (a) False (b) True
29. 29.📐 A beam is 550 cm long. How long is it in metres? =
30. 30.Which job does a civil engineer do? (a) lays out a highway (b) designs knee implants (c) plans a space mission (d) wires a new building
31. 31.True or false: a yoga mat needs a flexible material. (a) False (b) True
32. 32.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
33. 33.🪝 A bucket weighing 410 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
34. 34.🪢 Tension or compression: a bridge pier? (a) compression (b) tension
35. 35.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 46 cm tall. Is it within the constraint? (a) Yes (b) No
36. 36.Which of these is reuse (use again)? (a) carry a cloth bag (b) turn plastic into tiles (c) print on both sides (d) refill a water bottle
37. 37.🏋️ In which unit is work measured? (a) joule (J) (b) newton (N) (c) metre (m) (d) watt hour
38. 38.True or false: a bottle opener is a lever. (a) True (b) False
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
40. 40.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) give up (d) Imagine

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