Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 27 · 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 380 N did 1900 J of work. How many metres did the object move?
2. 2.True or false: pressing a doorbell is a pull. (a) True (b) False
3. 3.📐 How many centimetres are in 1 metre? (a) 60 (b) 1000 (c) 10 (d) 100
4. 4.Which of these needs a waterproof material? (a) a hair band (b) an umbrella cover (c) a plug pin (d) a car seat belt
5. 5.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) fitting rubber base pads (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) a stretched rubber band (b) a swing chain (c) a pillar under a roof (d) a suspension cable
7. 7.True or false: to use a cracked tool is not safe. (a) False (b) True
8. 8.True or false: “a rope bridge in hills” is a beam bridge. (a) True (b) False
9. 9.🪝 What does a single fixed pulley change? (a) the size of the load (b) the direction of pull (c) gravity (d) the colour of rope
10. 10.🔺 How do engineers stop a square frame from wobbling? (a) paint it (b) take off a side (c) add a diagonal brace (d) make it bigger
11. 11.🤝 A team of 5 shares 10 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
12. 12.🔢 To follow the engineering design process, which comes first: “Imagine” or “Test”? (a) Test (b) Imagine
13. 13.True or false: “a log across a stream” is a suspension bridge. (a) True (b) False
14. 14.🛞 Which surface gives the MOST friction to a sliding block? (a) ice (b) glass (c) sandpaper (d) polished marble
15. 15.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) yes, always (c) no, it breaks a limit (d) only if it is red
16. 16.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Test (b) Imagine (c) Plan (d) Create
17. 17.True or false: an electrical engineer designs a gearbox. (a) True (b) False
18. 18.Which need does a microscope meet? (a) keep food fresh longer (b) cross a wide river (c) make power from sunlight (d) see very tiny things
19. 19.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 40 cm and the load at 0 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
20. 20.🔄 Which design-process step is it to list the materials? (a) Ask (b) Plan (c) Improve (d) Create
21. 21.🏋️ A force of 80 N pushes a cart 5 m along the floor. How much work is done, in joules?
22. 22.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
23. 23.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) anywhere (c) on the pivot (d) farther from the pivot
24. 24.Which of these happens in the Improve step? (a) follow the plan to build (b) make a prototype (c) try it out (d) fix the weak part
25. 25.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) flexible (d) heat insulator
26. 26.🦺 How should you carry scissors? (a) points up, open (b) by the blades (c) points down, closed (d) while running
27. 27.🔺 Which strong shape does a roof truss use? (a) dome (b) beam (c) triangle (d) arch
28. 28.🔢 To follow the engineering design process, which is the LAST step? (a) Plan (b) Ask (c) Improve (d) Create
29. 29.🔍 Which is the odd one out? (a) a bridge pier (b) a tow rope on a car (c) a crane lifting cable (d) a stretched rubber band
30. 30.Which of these uses a dome? (a) a truss bridge side (b) a crane arm (c) an igloo (d) a roof truss
31. 31.🪝 A well winch has a handle (wheel) of radius 12 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
32. 32.🏋️ A smooth ramp is 9 m long and rises 3 m. What effort pushes a 2550 N box up it, in newtons? (ideal ramp, no friction)
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.⚖️ A seesaw balances. Zoya (360 N) sits 1 m from the pivot on one side; Ravi (120 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
35. 35.🛞 Why are tyres made with deep treads? (a) to grip the road (b) to look nice (c) to go slower (d) to save rubber
36. 36.Which of these is reduce (use less)? (a) plant in old tyres (b) melt cans into new cans (c) melt glass into new jars (d) carry a cloth bag
37. 37.🔺 Which strong shape does a round palace roof use? (a) arch (b) beam (c) triangle (d) dome
38. 38.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) read the challenge rules
39. 39.⚖️ In a class 2 lever, what is in the middle? (a) the effort (b) the fulcrum (c) the load (d) the axle
40. 40.🔍 Which is the odd one out? (a) hold up 500 g (b) carry 10 coins (c) use at most 20 straws (d) lift a cup of water

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