Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 170 · 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.🪝 A pulley system lifts a 40 N load with an effort of 20 N. What is its mechanical advantage (MA)?
2. 2.🏋️ A smooth ramp is 4 m long and rises 1 m. What effort pushes a 4000 N box up it, in newtons? (ideal ramp, no friction)
3. 3.🔍 Which is the odd one out? (a) roll at least 2 metres (b) hold up 500 g (c) use only paper and tape (d) keep ice for 1 hour
4. 4.What does the team leader do? (a) shares out the jobs (b) writes down results (c) runs the tests (d) puts the model together
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.🔧 Which tool would you use to tighten a nut? (a) a tape measure (b) pliers (c) a screwdriver (d) a spanner
7. 7.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 13 cm long in the drawing. How long is the real car, in centimetres?
8. 8.True or false: a bottle cap is a wheel and axle. (a) True (b) False
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a wooden plank 4 N, a carpet 6 N, sandpaper 7 N. How many newtons more were needed on sandpaper than on ice?
10. 10.📐 On a plan, 1 cm stands for 10 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
11. 11.🤝 In a design team, who puts the model together? (a) tester (b) builder (c) recorder (d) team leader
12. 12.📐 A beam is 140 cm long. How long is it in metres? =
13. 13.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 5 (c) 1000 (d) 10
14. 14.Which of these uses triangles? (a) a slab over a canal (b) a plank over a drain (c) a crane arm (d) a planetarium roof
15. 15.🌉 A beam bridge is 150 m long. Piers split it into equal spans of 25 m. How many spans are there?
16. 16.True or false: “fit on a school desk” is a criterion (a goal). (a) False (b) True
17. 17.True or false: a mountain is found in nature. (a) False (b) True
18. 18.True or false: a computer engineer designs satellites. (a) True (b) False
19. 19.Which of these happens in the Imagine step? (a) list the materials (b) follow the plan to build (c) find the limits (d) brainstorm many ideas
20. 20.🪝 A load of 40 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
21. 21.🏋️ A machine lifts a load of 800 N when you push with 200 N. What is its mechanical advantage (MA)?
22. 22.🔺 A flat frame has 6 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.True or false: chalk on a gym bar gives less friction. (a) True (b) False
24. 24.Which job does an aerospace engineer do? (a) lays out a highway (b) designs electric motors (c) keeps data safe online (d) plans a space mission
25. 25.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) change only one thing (d) hide a failed test
26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) copper (d) plastic
27. 27.📐 A beam is 990 cm long. How long is it in metres? =
28. 28.🏚️ 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 120 cm tall on a 20 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.🏋️ A force of 130 N pushes a cart 10 m along the floor. How much work is done, in joules?
30. 30.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) using a light roof (d) having a wide base
31. 31.Which of these is caused by muscular force? (a) brakes stop a bicycle (b) lifting a school bag (c) a rolling ball slows (d) a fridge magnet sticks
32. 32.True or false: sand on a slippery path gives more friction. (a) True (b) False
33. 33.True or false: to repeat each test is poor testing. (a) False (b) True
34. 34.True or false: a claw hammer on a nail is a pulley. (a) True (b) False
35. 35.♻️ Reduce, reuse or recycle: buy less packaging? (a) reduce (b) reuse (c) recycle
36. 36.🔄 Which design-process step is it to brainstorm many ideas? (a) Test (b) Create (c) Imagine (d) Plan
37. 37.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
38. 38.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) rectangle (c) hexagon (d) triangle
39. 39.Which of these is in compression (pushed)? (a) a tall bridge tower (b) a tug of war rope (c) a swing chain (d) a suspension cable
40. 40.🏋️ A machine lifts a load of 300 N when you push with 100 N. What is its mechanical advantage (MA)?

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