Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 16 · 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 can a force NOT do? (a) change its colour (b) change its shape (c) start it moving (d) stop it moving
2. 2.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
3. 3.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
4. 4.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
5. 5.True or false: to help a stuck teammate is good teamwork. (a) False (b) True
6. 6.True or false: a microscope helps people see very tiny things. (a) True (b) False
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
8. 8.True or false: to change only one thing is poor testing. (a) True (b) False
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 4 N, a carpet 5 N, sandpaper 7 N. Which surface gave the most friction? (a) a carpet (b) sandpaper (c) ice (d) a glass sheet
10. 10.True or false: to help a stuck teammate is poor teamwork. (a) False (b) True
11. 11.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Ask (c) Test (d) Create
12. 12.⚖️ Which class of lever is a crowbar? (a) class 3 (b) class 2 (c) class 1
13. 13.🤝 Is it good or poor teamwork to do all the work alone? (a) good teamwork (b) poor teamwork
14. 14.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) chemical (d) civil
15. 15.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) stacking loose bricks (d) using a heavy roof
16. 16.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
17. 17.🌉 In a stone arch bridge, the stones are in … (a) no force (b) tension (c) friction (d) compression
18. 18.Which of these uses a dome? (a) a plank over a drain (b) a roof truss (c) a truss bridge side (d) a round palace roof
19. 19.🦺 In the workshop, is it safe to cut towards your hand? (a) not safe (b) safe
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 20 cm and the load at 80 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
22. 22.🏋️ Pushing a crate 6 m took 1140 J of work. What force was used, in newtons?
23. 23.True or false: plucking a mango is a pull. (a) False (b) True
24. 24.🏋️ A force of 470 N did 3290 J of work. How many metres did the object move?
25. 25.🪢 A concrete slab weighing 2000 N rests evenly on 2 identical pillars. What compression force does each pillar carry, in newtons?
26. 26.True or false: “a curve under the deck” is a beam bridge. (a) True (b) False
27. 27.True or false: a biomedical engineer designs hearing aids. (a) True (b) False
28. 28.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
29. 29.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 9 weeks?
30. 30.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) choose and draw one
31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
32. 32.♻️ A project report has 24 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
33. 33.True or false: flowing river water is a non-renewable energy source. (a) False (b) True
34. 34.⚖️ A lever bar balances. The load is 300 N at 10 cm from the fulcrum. The effort is 60 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
35. 35.True or false: powder on a carrom board gives less friction. (a) False (b) True
36. 36.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 650 g. Does it meet the criterion? (a) No (b) Yes
37. 37.🔍 Which is the odd one out? (a) a door stopper (b) a well-bucket rope wheel (c) an axe blade (d) a knife edge
38. 38.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
39. 39.Which job is a tape measure for? (a) drive in a nail (b) make a hole in wood (c) check a shelf is level (d) measure a long length
40. 40.📋 Criteria are … (a) the team names (b) the tools you use (c) goals a design must meet (d) the limits on money

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