Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 193 · 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.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
2. 2.🪝 A pulley system lifts a 270 N load with an effort of 90 N. What is its mechanical advantage (MA)?
3. 3.🛠️ Is a seashell made by engineers or found in nature? (a) made by engineers (b) found in nature
4. 4.Which need does a tunnel meet? (a) store water for summer (b) carry many people far (c) reach a top floor fast (d) go through a mountain
5. 5.🔄 Which design-process step is it to brainstorm many ideas? (a) Ask (b) Plan (c) Create (d) Imagine
6. 6.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
7. 7.🛠️ Which of these is a problem an engineer could solve? (a) a lost cricket match (b) a road that floods (c) a boring story (d) a sad song
8. 8.🏋️ Pushing a crate 3 m took 1170 J of work. What force was used, in newtons?
9. 9.🔍 Which is the odd one out? (a) iron (b) copper (c) rubber (d) brass
10. 10.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a fixed pulley (b) a movable pulley
11. 11.True or false: “hold up 500 g” is a criterion (a goal). (a) True (b) False
12. 12.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
13. 13.Which of these happens in the Plan step? (a) define the problem (b) ask who will use it (c) dream up possible fixes (d) draw a labelled diagram
14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
15. 15.🏋️ A force of 100 N did 700 J of work. How many metres did the object move?
16. 16.True or false: to brainstorm many ideas is the Imagine step. (a) False (b) True
17. 17.📐 How many metres are in 1 kilometre? (a) 100 (b) 10 (c) 10000 (d) 1000
18. 18.📐 Why do engineers use scale drawings? (a) to hide sizes (b) big things fit on paper (c) to make them pretty (d) to save ink only
19. 19.🔍 Which is the odd one out? (a) a seashell (b) a dam (c) a bridge (d) a lift
20. 20.Which need does a lift meet? (a) reach a top floor fast (b) make power from sunlight (c) keep food fresh longer (d) see very tiny things
21. 21.True or false: an electrical engineer plans a power grid. (a) False (b) True
22. 22.Which of these happens in the Imagine step? (a) try it out (b) follow the plan to build (c) redesign after testing (d) dream up possible fixes
23. 23.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
24. 24.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) yes, by half (c) no, work stays the same (d) yes, always
25. 25.⚖️ A lever bar balances. The load is 400 N at 20 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
26. 26.True or false: a brick at a wall base is in compression (pushed). (a) True (b) False
27. 27.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) no, it repeats (d) only on Sundays
28. 28.Which of these needs a waterproof material? (a) a raincoat (b) a cooking pot handle (c) a hair band (d) a magnifier lens
29. 29.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Create (c) Ask (d) Imagine
30. 30.Which of these is recycle (make new things)? (a) carry a cloth bag (b) refill a water bottle (c) turn plastic into tiles (d) buy less packaging
31. 31.🔍 Which is the odd one out? (a) lift a cup of water (b) carry 10 coins (c) be under 30 cm tall (d) hold up 500 g
32. 32.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
33. 33.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
34. 34.What does the recorder do? (a) checks the goals are met (b) keeps the team on track (c) runs the tests (d) writes down results
35. 35.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
36. 36.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 750 g. Does it meet the criterion? (a) No (b) Yes
37. 37.🔢 To follow the engineering design process, which comes first: “Test” or “Ask”? (a) Test (b) Ask
38. 38.🏋️ A force of 120 N pushes a cart 4 m along the floor. How much work is done, in joules?
39. 39.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) gravity (c) magnetic force (d) friction
40. 40.Which of these is caused by friction? (a) a fridge magnet sticks (b) rain falls to the ground (c) a rolling ball slows (d) a magnet picks up pins

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