Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 584 · 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 smooth ramp is 9 m long and rises 3 m. What effort pushes a 1200 N box up it, in newtons? (ideal ramp, no friction)
2. 2.🏋️ A force of 260 N did 520 J of work. How many metres did the object move?
3. 3.🏋️ Work is done when a force moves something … (a) without moving it (b) only upwards (c) through a distance (d) very slowly
4. 4.🛞 How can we reduce friction in a machine? (a) add sand (b) make parts rough (c) press parts harder (d) oil the moving parts
5. 5.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 8 N, a wooden plank 11 N, sandpaper 14 N. Which surface gave the least friction? (a) a wooden plank (b) sandpaper (c) a glass sheet (d) ice
6. 6.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Imagine (b) Test (c) Improve (d) Create
7. 7.🪢 Compression is a force that … (a) cools things (b) pulls or stretches (c) makes light (d) pushes or squeezes
8. 8.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use a new load each time (d) use the same load
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using flexible joints (d) raising heavy tanks high
10. 10.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) Imagine (d) give up
11. 11.Which job is a tape measure for? (a) smooth a rough edge (b) measure a long length (c) check a shelf is level (d) turn a screw
12. 12.True or false: to change lots at once is good testing. (a) True (b) False
13. 13.🔺 Which shape keeps its shape best when its corners are pinned? (a) triangle (b) square (c) hexagon (d) rectangle
14. 14.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
15. 15.🌉 A beam bridge is 60 m long. Piers split it into equal spans of 30 m. How many spans are there?
16. 16.🤝 How do engineers share a design with others? (a) no drawings at all (b) clear labelled sketches (c) only talking fast (d) secret notes
17. 17.Which job is pliers for? (a) cut a wooden plank (b) turn a screw (c) grip and bend wire (d) check a shelf is level
18. 18.Which of these needs a flexible material? (a) a car seat belt (b) a roof sheet (c) a water tank (d) a raincoat
19. 19.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🛞 More or less friction: oil on a squeaky hinge? (a) more friction (b) less friction
21. 21.🪢 Tension or compression: a stretched rubber band? (a) compression (b) tension
22. 22.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 70 cm and the load at 60 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
23. 23.🔄 Which design-process step is it to redesign after testing? (a) Create (b) Imagine (c) Test (d) Improve
24. 24.🏋️ A machine lifts a load of 600 N when you push with 100 N. What is its mechanical advantage (MA)?
25. 25.📐 On a plan, 1 cm stands for 5 m. A real bridge is 90 m long. How long is it on the plan, in centimetres?
26. 26.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) not affected (c) twisted (d) stretched (tension)
27. 27.⚖️ A lever bar balances. The load is 300 N at ? cm from the fulcrum. The effort is 180 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
28. 28.🏋️ A machine lifts a load of 210 N when you push with 70 N. What is its mechanical advantage (MA)?
29. 29.🧑‍🔧 Which kind of engineer builds hospital scanners? (a) chemical (b) biomedical (c) civil (d) aerospace
30. 30.⚙️ Which simple machine is a well-bucket rope wheel? (a) wedge (b) inclined plane (c) lever (d) pulley
31. 31.True or false: drawing up a well bucket is a pull. (a) True (b) False
32. 32.True or false: “pushes out on its ends” is a beam bridge. (a) True (b) False
33. 33.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 13 cm long in the drawing. How long is the real car, in centimetres?
34. 34.🛞 More or less friction: a wheel on ball bearings? (a) more friction (b) less friction
35. 35.Which of these is a lever? (a) a seesaw (b) a flagpole rope wheel (c) a playground slide (d) the tip of a nail
36. 36.Which of these is made by engineers? (a) a satellite (b) a mountain (c) a seashell (d) a coral reef
37. 37.⚖️ A lever bar balances. The load is 720 N at ? cm from the fulcrum. The effort is 270 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
38. 38.Which of these is reduce (use less)? (a) melt cans into new cans (b) give old books away (c) carry a cloth bag (d) use a jar as a pen stand
39. 39.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: a window blind cord is a wedge. (a) True (b) False

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