Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 556 · 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.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
2. 2.Which of these happens in the Test step? (a) brainstorm many ideas (b) check it against goals (c) follow the plan to build (d) define the problem
3. 3.⚖️ A lever bar balances. The load is 100 N at 20 cm from the fulcrum. The effort is ? N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
4. 4.Which of these needs a waterproof material? (a) a cooking pot handle (b) a yoga mat (c) a boat hull (d) a car seat belt
5. 5.🏋️ A force of 210 N pushes a cart 2 m along the floor. How much work is done, in joules?
6. 6.🔧 Which tool would you use to drive in a nail? (a) a hammer (b) a tape measure (c) a screwdriver (d) a spanner
7. 7.🤝 In a design team, who collects the supplies? (a) recorder (b) materials manager (c) team leader (d) builder
8. 8.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 50 g. Does it meet the criterion? (a) No (b) Yes
9. 9.🛠️ Is a bicycle made by engineers or found in nature? (a) made by engineers (b) found in nature
10. 10.🏋️ A machine lifts a load of 160 N when you push with 40 N. What is its mechanical advantage (MA)?
11. 11.♻️ Reduce, reuse or recycle: plant in old tyres? (a) recycle (b) reduce (c) reuse
12. 12.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
13. 13.🔺 A beam bends under a load. Its top side is … (a) stretched (tension) (b) squeezed (compression) (c) floating (d) not affected
14. 14.⚙️ Which simple machine is a well-bucket rope wheel? (a) lever (b) inclined plane (c) wedge (d) pulley
15. 15.True or false: to skip writing results is poor testing. (a) True (b) False
16. 16.🤝 Is it good or poor teamwork to own up to a mistake? (a) good teamwork (b) poor teamwork
17. 17.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
18. 18.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
19. 19.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Create (b) Plan (c) Improve (d) Test
20. 20.⚖️ A seesaw balances. Arjun (? N) sits 2 m from the pivot on one side; Meena (240 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
21. 21.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Ask (c) Test (d) Improve
22. 22.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
23. 23.🪝 A pulley system lifts a 600 N load with an effort of 300 N. What is its mechanical advantage (MA)?
24. 24.True or false: a swing chain is in tension (pulled). (a) True (b) False
25. 25.True or false: a brick at a wall base is in compression (pushed). (a) True (b) False
26. 26.⚖️ A seesaw balances. Arjun (600 N) sits ? m from the pivot on one side; Ravi (150 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
27. 27.🏋️ A force of 260 N did 2080 J of work. How many metres did the object move?
28. 28.Which job is pliers for? (a) make a hole in wood (b) grip and bend wire (c) check a shelf is level (d) smooth a rough edge
29. 29.📋 A constraint is … (a) a goal for success (b) a kind of glue (c) a limit you must keep to (d) a final test
30. 30.💪 A box weighs 60 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
31. 31.🛠️ Is a railway track made by engineers or found in nature? (a) made by engineers (b) found in nature
32. 32.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) muscular force (d) gravity
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 120 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.True or false: to guess, do not measure is poor testing. (a) False (b) True
35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
36. 36.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
37. 37.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 5 N, a carpet 7 N, sandpaper 9 N. Which surface gave the least friction? (a) a wooden plank (b) a carpet (c) a glass sheet (d) sandpaper
38. 38.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
39. 39.True or false: a seashell is found in nature. (a) True (b) False
40. 40.🌉 In a suspension bridge, the main cables are in … (a) friction (b) no force (c) tension (d) compression

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