Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 265 · 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.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a movable pulley (b) a fixed pulley
2. 2.🛞 More or less friction: a smooth steel slide? (a) more friction (b) less friction
3. 3.True or false: a table leg is in tension (pulled). (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a mountain (b) a river (c) a waterfall (d) a satellite
5. 5.True or false: a swing chain is in compression (pushed). (a) True (b) False
6. 6.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) recycle, reuse, reduce (c) reduce, reuse, recycle (d) burn, bury, forget
7. 7.🔍 Which is the odd one out? (a) a lift (b) a satellite (c) a mountain (d) a water filter
8. 8.True or false: a water filter is found in nature. (a) False (b) True
9. 9.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 6 N, a carpet 7 N, sandpaper 10 N. How many newtons more were needed on sandpaper than on ice?
11. 11.🔄 After testing, a design does not work well. What comes next? (a) Imagine (b) give up (c) Improve (d) Ask
12. 12.Which of these is a wheel and axle? (a) a screw jack (b) a nut and bolt (c) a water tap handle (d) a crane hook block
13. 13.True or false: a dam is made by engineers. (a) False (b) True
14. 14.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) using a light roof (d) raising heavy tanks high
15. 15.🤝 In a design team, who tracks what is used up? (a) recorder (b) materials manager (c) team leader (d) tester
16. 16.🔍 Which is the odd one out? (a) cut away from your body (b) tie back long hair (c) clamp wood before sawing (d) cut towards your hand
17. 17.🧪 A paper bridge was tested three times. It held 270 g, 150 g and 270 g. What is the mean (average) load it held, in grams?
18. 18.⚖️ A seesaw balances. Asha (380 N) sits ? m from the pivot on one side; Zoya (570 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
19. 19.🔧 Which tool would you use to drive in a nail? (a) a protractor (b) a screwdriver (c) a tape measure (d) a hammer
20. 20.⚖️ A lever bar balances. The load is 80 N at ? cm from the fulcrum. The effort is 50 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
21. 21.🛞 Is friction helpful or a problem here: gripping a cricket bat? (a) helpful (b) a problem
22. 22.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) load it with coins (b) build it with straws
23. 23.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 3500 N box up it, in newtons? (ideal ramp, no friction)
24. 24.⚖️ A seesaw balances. Zoya (570 N) sits 4 m from the pivot on one side; Ravi (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.🔺 One side of a straw bridge is a row of 9 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
26. 26.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
27. 27.🔺 Which strong shape does a truss bridge side use? (a) beam (b) arch (c) triangle (d) dome
28. 28.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) not affected (c) stretched (tension) (d) twisted
29. 29.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
30. 30.🏋️ A longer ramp to the same height needs … (a) less effort (b) more effort (c) the same effort (d) no effort
31. 31.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
32. 32.🏋️ In which unit is work measured? (a) metre (m) (b) newton (N) (c) watt hour (d) joule (J)
33. 33.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a tyre with deep treads (c) a wheel on ball bearings (d) chalk on a gym bar
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.True or false: a lift is found in nature. (a) True (b) False
36. 36.True or false: a mobile phone is made by engineers. (a) False (b) True
37. 37.🏋️ A force of 300 N pushes a cart 7 m along the floor. How much work is done, in joules?
38. 38.True or false: “hold up 500 g” is a constraint (a limit). (a) False (b) True
39. 39.🔧 Which tool would you use to turn a screw? (a) sandpaper (b) a saw (c) a spirit level (d) a screwdriver
40. 40.⚖️ A seesaw balances. Ravi (570 N) sits ? m from the pivot on one side; Zoya (570 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?

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