Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 274 · 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 first prototype held 250 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
2. 2.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a movable pulley (b) a fixed pulley
3. 3.🪝 A load of 80 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
4. 4.📐 On a plan, 1 cm stands for 10 m. A real bridge is 110 m long. How long is it on the plan, in centimetres?
5. 5.🏋️ Pushing a crate 2 m took 540 J of work. What force was used, in newtons?
6. 6.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) keeping a simple shape (d) using a heavy roof
7. 7.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 1000 (c) 100 (d) 10
8. 8.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) triangle (d) rectangle
9. 9.🔢 To follow the engineering design process, which comes first: “Imagine” or “Ask”? (a) Ask (b) Imagine
10. 10.🪢 Which material is good in tension but useless in compression? (a) a concrete block (b) a stone (c) a rope (d) a brick
11. 11.💪 A cart is pulled to the right with 20 N and to the left with 25 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
12. 12.Which of these is recycle (make new things)? (a) carry a cloth bag (b) plant in old tyres (c) pulp old paper (d) fix a dripping tap
13. 13.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
14. 14.🦺 What protects your eyes when sawing or drilling? (a) safety goggles (b) a cap (c) sunglasses (d) nothing
15. 15.🛠️ People need to see very tiny things. Which invention helps? (a) a microscope (b) a train (c) a tunnel (d) a telephone
16. 16.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 6 N, a wooden plank 8 N, a carpet 12 N, ice 2 N. Which surface gave the least friction? (a) a glass sheet (b) a carpet (c) ice (d) a wooden plank
17. 17.Which of these uses a beam? (a) a roof truss (b) a curved stone doorway (c) a shelf on two brackets (d) a bicycle frame
18. 18.🔄 Which design-process step is it to follow the plan to build? (a) Create (b) Imagine (c) Plan (d) Improve
19. 19.📐 On a plan, 1 cm stands for 5 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
20. 20.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Test (c) Create (d) Ask
21. 21.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Test (c) Create (d) Improve
22. 22.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Kabir (480 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
23. 23.🔍 Which is the odd one out? (a) a window blind cord (b) a flagpole rope wheel (c) a seesaw (d) a well-bucket rope wheel
24. 24.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
25. 25.⚖️ Which class of lever is a lemon squeezer? (a) class 1 (b) class 3 (c) class 2
26. 26.⚖️ A seesaw balances. Zoya (140 N) sits ? m from the pivot on one side; Kabir (140 N) sits 1 m from the pivot on the other side. What is the missing distance in metres?
27. 27.⚙️ Which simple machine is a steering wheel? (a) wheel and axle (b) pulley (c) lever (d) inclined plane
28. 28.True or false: a brick at a wall base is in tension (pulled). (a) True (b) False
29. 29.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reuse (b) recycle (c) reduce
30. 30.📐 A beam is 700 cm long. How long is it in metres? =
31. 31.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔄 Which design-process step is it to make it better, retest? (a) Create (b) Plan (c) Ask (d) Improve
34. 34.♻️ Reduce, reuse or recycle: melt cans into new cans? (a) recycle (b) reduce (c) reuse
35. 35.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
36. 36.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) flexible (d) waterproof
37. 37.🤝 In a design team, who runs the tests? (a) recorder (b) team leader (c) builder (d) tester
38. 38.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 70 cm tall. Is it within the constraint? (a) Yes (b) No
39. 39.True or false: to dream up possible fixes is the Imagine step. (a) True (b) False
40. 40.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?

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