Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 832 · 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.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
2. 2.🤝 Is it good or poor teamwork to listen to every idea? (a) good teamwork (b) poor teamwork
3. 3.🛞 How can we reduce friction in a machine? (a) make parts rough (b) oil the moving parts (c) add sand (d) press parts harder
4. 4.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) Ask (c) Improve (d) give up
5. 5.True or false: to use a cracked tool is safe. (a) False (b) True
6. 6.🏋️ Pushing a crate 1 m took 360 J of work. What force was used, in newtons?
7. 7.🛞 More or less friction: skating on ice? (a) less friction (b) more friction
8. 8.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
9. 9.🪢 Tension or compression: a tent guy rope? (a) tension (b) compression
10. 10.🔍 Which is the odd one out? (a) touch a hot glue tip (b) cut towards your hand (c) use a cracked tool (d) tie back long hair
11. 11.🛞 More or less friction: a box pushed on carpet? (a) more friction (b) less friction
12. 12.🔍 Which is the odd one out? (a) sand on a slippery path (b) a wheel on ball bearings (c) a rough doormat (d) a grippy rubber sole
13. 13.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 200 bottles?
14. 14.🏋️ A force of 200 N pushes a cart 2 m along the floor. How much work is done, in joules?
15. 15.🏋️ Pushing a crate 1 m took 430 J of work. What force was used, in newtons?
16. 16.🔺 Which strong shape does a fort gateway use? (a) triangle (b) arch (c) beam (d) dome
17. 17.🛠️ Is a satellite made by engineers or found in nature? (a) found in nature (b) made by engineers
18. 18.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) far from the fulcrum (b) on the fulcrum (c) on the rock (d) near the fulcrum
19. 19.⚖️ A seesaw balances. Meena (540 N) sits 2 m from the pivot on one side; Ravi (360 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
20. 20.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 6 (c) 10 (d) 3
21. 21.⚖️ A seesaw balances. Ravi (? N) sits 2 m from the pivot on one side; Kabir (200 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
23. 23.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
24. 24.📋 A constraint is … (a) a final test (b) a kind of glue (c) a limit you must keep to (d) a goal for success
25. 25.🤝 A team plans for 25 minutes, builds for 10 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
26. 26.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) skating on ice (c) oil on a squeaky hinge (d) a tyre with deep treads
27. 27.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) arch bridge (c) suspension bridge
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.True or false: a mountain is made by engineers. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) aluminium (d) dry wood
31. 31.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
32. 32.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) building tall and narrow (d) stacking loose bricks
33. 33.True or false: to wear safety goggles is safe. (a) True (b) False
34. 34.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 950 g. Does it meet the criterion? (a) No (b) Yes
35. 35.⚖️ A seesaw balances. Arjun (? N) sits 1 m from the pivot on one side; Kabir (110 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
36. 36.♻️ Which energy source will never run out? (a) diesel (b) coal (c) petrol (d) sunlight
37. 37.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 7 N, a carpet 8 N, sandpaper 9 N, ice 3 N. Which surface gave the most friction? (a) sandpaper (b) a carpet (c) ice (d) a wooden plank
38. 38.🏋️ A force of 10 N did 10 J of work. How many metres did the object move?
39. 39.🧑‍🔧 Which kind of engineer designs a flyover? (a) aerospace (b) civil (c) computer (d) mechanical
40. 40.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 9 weeks?

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