Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 634 · 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 is the odd one out? (a) a wood screw (b) a nut and bolt (c) a screw jack (d) a seesaw
2. 2.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 100 (d) 1000
3. 3.True or false: a fishing rod is a class 3 lever (effort in the middle). (a) True (b) False
4. 4.What does the recorder do? (a) collects the supplies (b) puts the model together (c) checks the goals are met (d) keeps the design notes
5. 5.🏋️ 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
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.💪 Which force pulls everything towards the Earth? (a) magnetism (b) wind (c) friction (d) gravity
8. 8.⚙️ Which simple machine is a crane hook block? (a) screw (b) wheel and axle (c) wedge (d) pulley
9. 9.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 2750 N box up it, in newtons? (ideal ramp, no friction)
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 6 N, sandpaper 9 N, a glass sheet 2 N, a wooden plank 4 N. Which surface gave the most friction? (a) sandpaper (b) a wooden plank (c) a glass sheet (d) a carpet
11. 11.🏋️ A longer ramp to the same height needs … (a) more effort (b) less effort (c) no effort (d) the same effort
12. 12.🔍 Which is the odd one out? (a) play near a moving drill (b) cut towards your hand (c) clamp wood before sawing (d) use a cracked tool
13. 13.🔧 Which tool would you use to cut a wooden plank? (a) sandpaper (b) a protractor (c) a screwdriver (d) a saw
14. 14.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) both weights are equal (d) turning effects match
15. 15.🔍 Which is the odd one out? (a) finish in 40 minutes (b) hold up 500 g (c) fit on a school desk (d) use at most 20 straws
16. 16.🔺 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?
17. 17.Which job does a computer engineer do? (a) refines crude oil (b) writes app software (c) designs a gearbox (d) designs car engines
18. 18.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
19. 19.🔧 Which tool would you use to make a hole in wood? (a) a hand drill (b) a saw (c) a spirit level (d) a tape measure
20. 20.True or false: a mobile phone is made by engineers. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) rubber (b) iron (c) brass (d) copper
22. 22.🔺 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?
23. 23.🏋️ A force of 410 N pushes a cart 10 m along the floor. How much work is done, in joules?
24. 24.True or false: a pair of tweezers is a class 2 lever (load in the middle). (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) hide a failed test (d) record every result
26. 26.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
27. 27.🔄 Which design-process step is it to dream up possible fixes? (a) Improve (b) Imagine (c) Plan (d) Test
28. 28.⚖️ In a class 3 lever, what is in the middle? (a) the pulley (b) the effort (c) the load (d) the fulcrum
29. 29.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) chemical (c) mechanical (d) biomedical
30. 30.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Meena (640 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.🔺 Which strong shape does a shelf on two brackets use? (a) dome (b) arch (c) beam (d) triangle
32. 32.📐 On a plan, 1 cm stands for 20 m. A real bridge is 340 m long. How long is it on the plan, in centimetres?
33. 33.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 900 N box up it, in newtons? (ideal ramp, no friction)
34. 34.🔍 Which is the odd one out? (a) lift a cup of water (b) finish in 40 minutes (c) roll at least 2 metres (d) hold up 500 g
35. 35.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 4 N, a wooden plank 8 N, a carpet 9 N. How many newtons more were needed on a carpet than on ice?
36. 36.🛠️ Is a river made by engineers or found in nature? (a) found in nature (b) made by engineers
37. 37.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
38. 38.🏋️ Pushing a crate 2 m took 700 J of work. What force was used, in newtons?
39. 39.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
40. 40.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 300 g. Does it meet the criterion? (a) Yes (b) No

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