Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 541 · 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.♻️ A school bench is made from 150 recycled plastic bottles. How many benches can be made from 1350 bottles?
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
3. 3.🏋️ 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
4. 4.Which of these is reuse (use again)? (a) carry a cloth bag (b) fix a dripping tap (c) give old books away (d) pulp old paper
5. 5.🏋️ Pushing a crate 10 m took 100 J of work. What force was used, in newtons?
6. 6.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 4 N, sandpaper 7 N, ice 1 N. Which surface gave the least friction? (a) a wooden plank (b) a glass sheet (c) sandpaper (d) ice
7. 7.🪝 A winch has a wheel of radius 3 cm and an axle of radius 1 cm. What effort on the wheel lifts a 300 N bucket on the axle, in newtons? (ideal)
8. 8.🪢 Tension or compression: a swing chain? (a) compression (b) tension
9. 9.🔺 A frame shaped like a square is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
10. 10.⚖️ Which class of lever is a fishing rod? (a) class 3 (b) class 2 (c) class 1
11. 11.True or false: to help a stuck teammate is poor teamwork. (a) True (b) False
12. 12.True or false: a civil engineer designs aeroplane wings. (a) False (b) True
13. 13.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
14. 14.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
15. 15.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 8 N, a wooden plank 10 N, a carpet 12 N, ice 4 N. How many newtons more were needed on a carpet than on ice?
16. 16.True or false: to measure the same way is poor testing. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) clamp wood before sawing (b) run while holding tools (c) play near a moving drill (d) touch a hot glue tip
18. 18.🔧 Which tool would you use to check a shelf is level? (a) a hammer (b) pliers (c) a tape measure (d) a spirit level
19. 19.🏋️ Work is done when a force moves something … (a) through a distance (b) without moving it (c) only upwards (d) very slowly
20. 20.True or false: “roll at least 2 metres” is a criterion (a goal). (a) False (b) True
21. 21.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) listen and ask why (c) laugh at it (d) walk away
22. 22.💪 In a tug of war, one team pulls right with 25 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
23. 23.Which of these is reuse (use again)? (a) switch off unused lights (b) plant in old tyres (c) melt cans into new cans (d) fix a dripping tap
24. 24.🧑‍🔧 Which kind of engineer designs knee implants? (a) chemical (b) civil (c) biomedical (d) mechanical
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) making brittle joints (d) using a light roof
26. 26.⚖️ A lever bar balances. The load is 500 N at 50 cm from the fulcrum. The effort is 500 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
27. 27.🤝 A team plans for 50 minutes, builds for 10 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
28. 28.True or false: a wheelbarrow is a class 2 lever (load in the middle). (a) True (b) False
29. 29.True or false: an electric pylon uses triangles. (a) True (b) False
30. 30.What does the tester do? (a) writes down results (b) collects the supplies (c) tracks what is used up (d) runs the tests
31. 31.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Imagine (c) Ask (d) Improve
32. 32.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
33. 33.🪢 Tension or compression: a hanging lamp chain? (a) compression (b) tension
34. 34.Which of these is a pulley? (a) a screw jack (b) a crane hook block (c) a jar lid (d) a bottle cap
35. 35.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
36. 36.🔢 To follow the engineering design process, which comes first: “Plan” or “Imagine”? (a) Imagine (b) Plan
37. 37.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) dry wood
38. 38.🔍 Which is the odd one out? (a) a bicycle (b) a dam (c) a mobile phone (d) a seashell
39. 39.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) using flexible joints (d) using a heavy roof
40. 40.🔺 A flat frame has 8 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?

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