Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 606 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a wooden plank 9 N, a carpet 13 N, ice 2 N. Which surface gave the least friction? (a) ice (b) a carpet (c) a wooden plank (d) a glass sheet
2. 2.🏋️ A force of 280 N pushes a cart 4 m along the floor. How much work is done, in joules?
3. 3.Which of these is a screw? (a) a road up a hill (b) a claw hammer on a nail (c) a well winch handle (d) a jar lid
4. 4.💪 A bag has a mass of 9 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
5. 5.📐 On a plan, 1 cm stands for 10 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
6. 6.⚙️ A wedge is … (a) a bar on a pivot (b) a rope on a wheel (c) two ramps back to back (d) a wheel on a rod
7. 7.Which need does a train meet? (a) go through a mountain (b) carry many people far (c) make water safe to drink (d) reach a top floor fast
8. 8.Which of these needs a flexible material? (a) a raincoat (b) a yoga mat (c) a water tank (d) a switch contact
9. 9.🤝 A team plans for 30 minutes, builds for 50 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
10. 10.🪝 A load of 600 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) keeping a simple shape (d) building tall and narrow
12. 12.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it bends easily (c) it is very light (d) it works in compression
13. 13.Which of these uses a dome? (a) a curved stone doorway (b) a shelf on two brackets (c) a round palace roof (d) a lintel over a door
14. 14.🔺 Which strong shape does a curved stone doorway use? (a) dome (b) beam (c) triangle (d) arch
15. 15.🔍 Which is the odd one out? (a) play near a moving drill (b) cut away from your body (c) touch a hot glue tip (d) run while holding tools
16. 16.True or false: a computer engineer plans a power grid. (a) False (b) True
17. 17.📐 On a plan, 1 cm stands for 10 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
18. 18.True or false: a stretched rubber band is in compression (pushed). (a) True (b) False
19. 19.💪 Which force is at work: rain falls to the ground? (a) friction (b) muscular force (c) magnetic force (d) gravity
20. 20.🤝 A team plans for 15 minutes, builds for 60 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
21. 21.🧑‍🔧 Which kind of engineer wires a new building? (a) electrical (b) civil (c) biomedical (d) aerospace
22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
23. 23.🏋️ A force of 30 N pushes a cart 3 m along the floor. How much work is done, in joules?
24. 24.True or false: to grip and bend wire, use a protractor. (a) False (b) True
25. 25.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
26. 26.⚖️ Turning effect = force × … (a) colour of bar (b) time taken (c) distance from fulcrum (d) mass of fulcrum
27. 27.📐 On a plan, 1 cm stands for 5 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
28. 28.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
29. 29.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1050 g. Does it meet the criterion? (a) Yes (b) No
30. 30.True or false: “a log across a stream” is an arch bridge. (a) True (b) False
31. 31.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) biomedical (b) computer (c) civil (d) chemical
32. 32.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) only on Mondays (c) yes, by half (d) no, work stays the same
33. 33.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) polished marble (c) glass (d) sandpaper
34. 34.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
35. 35.🪝 What does a single fixed pulley change? (a) the direction of pull (b) the colour of rope (c) gravity (d) the size of the load
36. 36.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
37. 37.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
38. 38.📋 Criteria are … (a) goals a design must meet (b) the team names (c) the limits on money (d) the tools you use
39. 39.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
40. 40.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) load it with coins (d) build it with straws

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