Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 25 · 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 family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 11 weeks?
2. 2.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 14 cm long in the drawing. How long is the real car, in centimetres?
3. 3.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Imagine (c) Plan (d) Test
4. 4.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) beam bridge (c) arch bridge
5. 5.🪢 Tension or compression: a bridge pier? (a) tension (b) compression
6. 6.🧪 A paper bridge was tested three times. It held 240 g, 160 g and 290 g. What is the mean (average) load it held, in grams?
7. 7.True or false: a beam balance is a class 2 lever (load in the middle). (a) True (b) False
8. 8.💪 A force is a … (a) unit of time (b) type of sound (c) push or a pull (d) kind of colour
9. 9.🦺 In the workshop, is it safe to cut away from your body? (a) not safe (b) safe
10. 10.Which of these is a suspension bridge? (a) the simplest bridge (b) a log across a stream (c) pushes out on its ends (d) the longest spans of all
11. 11.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) floating (c) not affected (d) squeezed (compression)
12. 12.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
13. 13.⚖️ A seesaw balances. Kabir (360 N) sits 3 m from the pivot on one side; Asha (360 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
14. 14.True or false: to use a new load each time is good testing. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a well-bucket rope wheel (b) a claw hammer on a nail (c) a flagpole rope wheel (d) a window blind cord
16. 16.True or false: a boat hull needs a waterproof material. (a) True (b) False
17. 17.True or false: oil on a squeaky hinge gives more friction. (a) False (b) True
18. 18.🤝 Is it good or poor teamwork to agree before changing? (a) good teamwork (b) poor teamwork
19. 19.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) rigid (b) wobbly
20. 20.🔺 A flat frame has 4 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
21. 21.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 500 g. Does it meet the criterion? (a) Yes (b) No
22. 22.📐 On a plan, 1 cm stands for 20 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
23. 23.Which need does a microscope meet? (a) make power from sunlight (b) see very tiny things (c) make water safe to drink (d) cross a wide river
24. 24.Which of these is a screw? (a) a claw hammer on a nail (b) a seesaw (c) a jar lid (d) a steering wheel
25. 25.🦺 How should you carry scissors? (a) while running (b) points up, open (c) by the blades (d) points down, closed
26. 26.📐 On a plan, 1 cm stands for 2 m. A real bridge is 26 m long. How long is it on the plan, in centimetres?
27. 27.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 400 N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) civil (b) aerospace (c) electrical (d) mechanical
29. 29.Which of these happens in the Plan step? (a) measure its performance (b) make a prototype (c) pick the build order (d) redesign after testing
30. 30.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
31. 31.⚙️ Which simple machine is a door stopper? (a) inclined plane (b) screw (c) lever (d) wedge
32. 32.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) flexible (d) transparent
33. 33.🤝 A teammate’s idea seems odd. What should you do first? (a) walk away (b) listen and ask why (c) laugh at it (d) ignore it
34. 34.🦺 In the workshop, is it safe to tie back long hair? (a) not safe (b) safe
35. 35.⚖️ A lever bar balances. The load is 270 N at 50 cm from the fulcrum. The effort is 450 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
36. 36.🔍 Which is the odd one out? (a) fit on a school desk (b) hold up 500 g (c) carry 10 coins (d) keep ice for 1 hour
37. 37.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 15 cm long in the drawing. How long is the real car, in centimetres?
38. 38.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) no, work stays the same (c) yes, by half (d) only on Mondays
39. 39.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
40. 40.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 5 N, ice 2 N, a wooden plank 3 N, a carpet 4 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) ice (d) sandpaper

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