Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 795 · 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 is the odd one out? (a) oil on a squeaky hinge (b) a rough doormat (c) a wet tiled floor (d) a smooth steel slide
2. 2.🤝 In a design team, who writes down results? (a) recorder (b) team leader (c) tester (d) builder
3. 3.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) a magnifier lens (d) a car seat belt
4. 4.Which of these happens in the Imagine step? (a) find the limits (b) brainstorm many ideas (c) try it out (d) fix the weak part
5. 5.🔺 Which strong shape does a plank over a drain use? (a) triangle (b) beam (c) arch (d) dome
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the strongest? (a) design C (b) design A (c) design B
7. 7.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) beam bridge (c) arch bridge
8. 8.🤝 A team of 2 shares 6 equal jobs fairly. Each job takes 5 minutes. How many minutes does each person work?
9. 9.🤝 A team plans for 25 minutes, builds for 60 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
10. 10.Which of these needs a transparent material? (a) a water tank (b) a hair band (c) a yoga mat (d) a spectacle lens
11. 11.🪝 A well winch has a handle (wheel) of radius 28 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
12. 12.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) the load (c) nothing (d) the effort
13. 13.🔍 Which is the odd one out? (a) cut away from your body (b) let adults use hot glue (c) touch a hot glue tip (d) carry scissors closed
14. 14.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
15. 15.What does the tester do? (a) collects the supplies (b) checks the goals are met (c) shares out the jobs (d) tracks what is used up
16. 16.🦺 In the workshop, is it safe to cut away from your body? (a) not safe (b) safe
17. 17.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) arch bridge (c) beam bridge (d) log bridge
18. 18.True or false: sunlight is a renewable energy source. (a) True (b) False
19. 19.True or false: a tug of war is a push. (a) False (b) True
20. 20.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) arch bridge (c) beam bridge
21. 21.True or false: an aerospace engineer designs aeroplane wings. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a grippy rubber sole (b) oil on a squeaky hinge (c) a tyre with deep treads (d) a rough doormat
23. 23.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
24. 24.🏋️ Pushing a crate 4 m took 920 J of work. What force was used, in newtons?
25. 25.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
26. 26.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
27. 27.True or false: “tall towers hold cables” is a suspension bridge. (a) False (b) True
28. 28.⚖️ A lever bar balances. The load is 180 N at 50 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
29. 29.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 2 (c) class 1
30. 30.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
31. 31.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
32. 32.True or false: a bridge is found in nature. (a) True (b) False
33. 33.📐 On a plan, 1 cm stands for 5 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
34. 34.⚖️ A lever bar balances. The load is 80 N at 10 cm from the fulcrum. The effort is ? N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
35. 35.True or false: a jar lid is a pulley. (a) False (b) True
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 6 N, a wooden plank 8 N, a carpet 12 N. Which surface gave the least friction? (a) ice (b) a wooden plank (c) a carpet (d) a glass sheet
37. 37.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
38. 38.📋 Criteria are … (a) the team names (b) the tools you use (c) goals a design must meet (d) the limits on money
39. 39.🔍 Which is the odd one out? (a) a brick at a wall base (b) a bridge pier (c) a squeezed spring (d) a tow rope on a car
40. 40.⚙️ Which simple machine is a seesaw? (a) screw (b) wheel and axle (c) inclined plane (d) lever

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