Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 430 · 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 of these is caused by gravity? (a) lifting a school bag (b) a river flows downhill (c) brakes stop a bicycle (d) a rolling ball slows
2. 2.⚖️ A seesaw balances. Kabir (170 N) sits 3 m from the pivot on one side; Ravi (510 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
3. 3.💪 A bag has a mass of 22 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
4. 4.🔍 Which is the odd one out? (a) a nutcracker (b) a bottle opener (c) a nut and bolt (d) a seesaw
5. 5.🏋️ A force of 430 N did 2580 J of work. How many metres did the object move?
6. 6.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a flat ramp (c) a sharp wedge (d) a smaller rod (axle)
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
8. 8.Which of these is a wedge? (a) a crowbar (b) the tip of a nail (c) a seesaw (d) a truck loading ramp
9. 9.🛞 Friction acts … (a) with the motion (b) against the motion (c) only on ice (d) only upwards
10. 10.True or false: to skip writing results is good testing. (a) True (b) False
11. 11.🏋️ A force of 500 N did 4500 J of work. How many metres did the object move?
12. 12.Which of these happens in the Plan step? (a) ask who will use it (b) make a prototype (c) measure its performance (d) pick the build order
13. 13.🏋️ A 19 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
14. 14.True or false: an electrical engineer plans a power grid. (a) True (b) False
15. 15.True or false: “a flat deck on piers” is a beam bridge. (a) False (b) True
16. 16.⚙️ Which simple machine is a road up a hill? (a) wedge (b) pulley (c) wheel and axle (d) inclined plane
17. 17.Which of these is a screw? (a) a nut and bolt (b) a window blind cord (c) a chisel (d) a playground slide
18. 18.True or false: to redesign after testing is the Ask step. (a) True (b) False
19. 19.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
20. 20.🪝 A well winch has a handle (wheel) of radius 4 cm turning an axle of radius 2 cm. What is its mechanical advantage (MA)?
21. 21.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reduce (b) recycle (c) reuse
22. 22.🔄 Is the engineering design process done only once? (a) yes, only once (b) only on Sundays (c) no, it repeats (d) only for big jobs
23. 23.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
24. 24.🔺 Which strong shape does a fort gateway use? (a) beam (b) dome (c) arch (d) triangle
25. 25.🔍 Which is the odd one out? (a) a tent guy rope (b) a temple column (c) a tow rope on a car (d) a crane lifting cable
26. 26.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
27. 27.🔢 To follow the engineering design process, which comes first: “Test” or “Ask”? (a) Test (b) Ask
28. 28.Which need does a lift meet? (a) make water safe to drink (b) store water for summer (c) reach a top floor fast (d) make power from sunlight
29. 29.Which of these is made by engineers? (a) a cloud (b) a seashell (c) a bicycle (d) a rainbow
30. 30.Which of these uses an arch? (a) a planetarium roof (b) a crane arm (c) a round palace roof (d) a curved stone doorway
31. 31.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 200 N box up it, in newtons? (ideal ramp, no friction)
32. 32.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a limit you must keep to (d) a final test
33. 33.Which of these is made by engineers? (a) a dam (b) a rainbow (c) a waterfall (d) a river
34. 34.⚙️ Which simple machine is a window blind cord? (a) wedge (b) wheel and axle (c) inclined plane (d) pulley
35. 35.🪝 A bucket weighing 300 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
36. 36.♻️ A sustainable design … (a) lasts one day (b) uses the most plastic (c) wastes water (d) protects the future
37. 37.Which of these happens in the Create step? (a) build the model (b) check it against goals (c) find the limits (d) redesign after testing
38. 38.🤝 Is it good or poor teamwork to share the work fairly? (a) good teamwork (b) poor teamwork
39. 39.🔄 Which design-process step is it to dream up possible fixes? (a) Imagine (b) Test (c) Plan (d) Ask
40. 40.True or false: “use at most 20 straws” is a criterion (a goal). (a) True (b) False

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