Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 638 · 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 force of 110 N did 330 J of work. How many metres did the object move?
2. 2.🪢 Tension or compression: a table leg? (a) compression (b) tension
3. 3.True or false: a train helps people make power from sunlight. (a) False (b) True
4. 4.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a sharp wedge (c) a flat ramp (d) a smaller rod (axle)
5. 5.⚖️ Which class of lever is a lemon squeezer? (a) class 3 (b) class 1 (c) class 2
6. 6.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
7. 7.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) rubber (d) glass
8. 8.⚖️ A lever bar balances. The load is 600 N at 40 cm from the fulcrum. The effort is 240 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
9. 9.Which of these happens in the Imagine step? (a) draw a labelled diagram (b) brainstorm many ideas (c) redesign after testing (d) measure its performance
10. 10.🌉 In a suspension bridge, the main cables are in … (a) no force (b) tension (c) compression (d) friction
11. 11.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) record every result (d) hide a failed test
12. 12.True or false: an aerospace engineer plans a space mission. (a) False (b) True
13. 13.📐 A beam is 820 cm long. How long is it in metres? =
14. 14.🔄 Which design-process step is it to draw a labelled diagram? (a) Test (b) Ask (c) Create (d) Plan
15. 15.🌉 A beam bridge is 200 m long. Piers split it into equal spans of 25 m. How many spans are there?
16. 16.True or false: a grippy rubber sole gives less friction. (a) True (b) False
17. 17.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
18. 18.🏋️ Pushing a crate 1 m took 480 J of work. What force was used, in newtons?
19. 19.⚖️ A seesaw balances. Arjun (510 N) sits ? m from the pivot on one side; Kabir (340 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
20. 20.True or false: a microscope helps people store water for summer. (a) False (b) True
21. 21.💪 Two children push a box to the right, one with 80 N and the other with 95 N. What is the net (total) force on the box, in newtons?
22. 22.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
23. 23.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 10 m, how many metres of rope must you pull?
24. 24.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) rubber (d) cotton cloth
25. 25.True or false: coal is a renewable energy source. (a) True (b) False
26. 26.True or false: pulling a cart is a push. (a) True (b) False
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
28. 28.Which of these is reduce (use less)? (a) give old books away (b) carry a cloth bag (c) pulp old paper (d) use a jar as a pen stand
29. 29.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
30. 30.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) adding steel to concrete (d) stacking loose bricks
31. 31.🔍 Which is the odd one out? (a) a chisel (b) a well-bucket rope wheel (c) an axe blade (d) the tip of a nail
32. 32.🛠️ Is a coral reef made by engineers or found in nature? (a) found in nature (b) made by engineers
33. 33.♻️ Reduce, reuse or recycle: refill a water bottle? (a) reduce (b) reuse (c) recycle
34. 34.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
35. 35.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Create (c) Ask (d) Test
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.Which of these is caused by magnetic force? (a) a river flows downhill (b) rubbing hands warms them (c) a magnet picks up pins (d) a thrown ball comes down
38. 38.🛞 More or less friction: a box pushed on carpet? (a) more friction (b) less friction
39. 39.🧪 A paper bridge was tested three times. It held 340 g, 240 g and 410 g. What is the mean (average) load it held, in grams?
40. 40.💪 A bag has a mass of 40 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?

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