Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 120 · 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.🛞 Rubbing your hands fast makes them … (a) wet (b) cold (c) magnetic (d) warm
2. 2.True or false: a tug of war rope is in compression (pushed). (a) True (b) False
3. 3.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Test (c) Ask (d) Improve
4. 4.📐 How many metres are in 1 kilometre? (a) 1000 (b) 100 (c) 10 (d) 10000
5. 5.🪝 A bucket weighing 290 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
6. 6.True or false: to use a new load each time is good testing. (a) False (b) True
7. 7.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) closer to the pivot (c) on the pivot (d) anywhere
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🤝 How do engineers share a design with others? (a) no drawings at all (b) clear labelled sketches (c) only talking fast (d) secret notes
11. 11.🌉 In a stone arch bridge, the stones are in … (a) compression (b) tension (c) friction (d) no force
12. 12.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
13. 13.🔄 Which design-process step is it to build the model? (a) Plan (b) Improve (c) Create (d) Test
14. 14.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
15. 15.🔍 Which is the odd one out? (a) a ceiling fan (b) a railway track (c) a cloud (d) a satellite
16. 16.True or false: to hide a failed test is poor testing. (a) False (b) True
17. 17.🛠️ What does an engineer mainly do? (a) grows crops (b) sells tickets (c) designs useful solutions (d) only paints pictures
18. 18.🤝 A team plans for 10 minutes, builds for 40 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
19. 19.⚙️ Which simple machine is a steering wheel? (a) wheel and axle (b) screw (c) lever (d) pulley
20. 20.🤝 Why do engineers work in teams? (a) to argue more (b) to finish nothing (c) many skills and ideas (d) to work alone
21. 21.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 1000 (c) 5 (d) 10
22. 22.🔺 One side of a straw bridge is a row of 3 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
23. 23.♻️ Is natural gas a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
24. 24.Which of these happens in the Improve step? (a) find the limits (b) fix the weak part (c) check it against goals (d) brainstorm many ideas
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 70 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
26. 26.📐 A beam is 280 cm long. How long is it in metres? =
27. 27.🔍 Which is the odd one out? (a) a wood screw (b) a seesaw (c) a bottle cap (d) a screw jack
28. 28.🔢 To follow the engineering design process, which is the LAST step? (a) Ask (b) Imagine (c) Improve (d) Plan
29. 29.Which of these is a beam bridge? (a) tall towers hold cables (b) the longest spans of all (c) pushes out on its ends (d) good for short gaps
30. 30.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Imagine (c) Ask (d) Improve
31. 31.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) log bridge (c) arch bridge (d) beam bridge
32. 32.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a loose rope (c) a sharp wedge (d) a smaller rod (axle)
33. 33.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 0 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
34. 34.🤝 In a design team, who collects the supplies? (a) materials manager (b) team leader (c) recorder (d) tester
35. 35.⚖️ A lever bar balances. The load is 500 N at 30 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
36. 36.🧪 A paper bridge was tested three times. It held 220 g, 90 g and 140 g. What is the mean (average) load it held, in grams?
37. 37.⚖️ What is the pivot point of a lever called? (a) the fulcrum (b) the load (c) the effort (d) the axle
38. 38.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) arch bridge (c) beam bridge
39. 39.Which job is a tape measure for? (a) check a shelf is level (b) cut a wooden plank (c) turn a screw (d) measure a long length
40. 40.True or false: a lemon squeezer is a class 3 lever (effort in the middle). (a) True (b) False

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