Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 791 · 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.True or false: a rough doormat gives less friction. (a) False (b) True
2. 2.🏋️ Work is done when a force moves something … (a) very slowly (b) without moving it (c) only upwards (d) through a distance
3. 3.📐 On a plan, 1 cm stands for 2 m. A real bridge is 18 m long. How long is it on the plan, in centimetres?
4. 4.🪢 A concrete slab weighing 15000 N rests evenly on 5 identical pillars. What compression force does each pillar carry, in newtons?
5. 5.🔺 How do engineers stop a square frame from wobbling? (a) make it bigger (b) add a diagonal brace (c) take off a side (d) paint it
6. 6.Which of these needs an electrical conductor? (a) a tea flask lining (b) a roof sheet (c) the core of a wire (d) a window pane
7. 7.🏋️ Pushing a crate 2 m took 720 J of work. What force was used, in newtons?
8. 8.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) fitting rubber base pads (d) raising heavy tanks high
9. 9.🦺 How should you carry scissors? (a) by the blades (b) points up, open (c) points down, closed (d) while running
10. 10.Which of these is found in nature? (a) a lift (b) a mobile phone (c) a coral reef (d) a bridge
11. 11.🏋️ A force of 380 N did 3800 J of work. How many metres did the object move?
12. 12.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) sketch three ideas (b) strengthen the weak part
13. 13.⚖️ Turning effect = force × … (a) time taken (b) mass of fulcrum (c) distance from fulcrum (d) colour of bar
14. 14.What does the tester do? (a) checks the goals are met (b) keeps the team on track (c) cuts and joins parts (d) shares out the jobs
15. 15.🔍 Which is the odd one out? (a) run while holding tools (b) use a cracked tool (c) let adults use hot glue (d) play near a moving drill
16. 16.🔄 Which design-process step is it to find the limits? (a) Imagine (b) Ask (c) Plan (d) Test
17. 17.⚖️ A lever bar balances. The load is 270 N at ? cm from the fulcrum. The effort is 30 N at 90 cm from the fulcrum on the other side. What is the missing distance in centimetres?
18. 18.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a wooden plank 7 N, a carpet 9 N, sandpaper 11 N. Which surface gave the most friction? (a) a carpet (b) sandpaper (c) ice (d) a wooden plank
19. 19.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 1 (c) class 3
20. 20.💪 A force is a … (a) type of sound (b) push or a pull (c) unit of time (d) kind of colour
21. 21.🔺 Which strong shape does a fort gateway use? (a) arch (b) triangle (c) dome (d) beam
22. 22.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
23. 23.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
24. 24.True or false: a movable pulley needs effort = load. (a) True (b) False
25. 25.🪝 A winch has a wheel of radius 6 cm and an axle of radius 2 cm. What effort on the wheel lifts a 180 N bucket on the axle, in newtons? (ideal)
26. 26.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
27. 27.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) use a cracked tool (b) cut away from your body (c) play near a moving drill (d) touch a hot glue tip
30. 30.True or false: a microscope helps people see very tiny things. (a) False (b) True
31. 31.True or false: a telephone helps people make power from sunlight. (a) False (b) True
32. 32.🛠️ What does an engineer do before building anything? (a) understands the problem (b) paints the model (c) builds at once (d) buys every material
33. 33.🔄 Which design-process step is it to list the materials? (a) Plan (b) Create (c) Improve (d) Imagine
34. 34.Which job is a screwdriver for? (a) check a shelf is level (b) drive in a nail (c) smooth a rough edge (d) turn a screw
35. 35.True or false: a civil engineer plans a dam. (a) False (b) True
36. 36.💪 In which unit do we measure force? (a) litre (L) (b) metre (m) (c) second (s) (d) newton (N)
37. 37.True or false: ocean wave energy is a non-renewable energy source. (a) True (b) False
38. 38.🌉 In a suspension bridge, the main cables are in … (a) friction (b) tension (c) no force (d) compression
39. 39.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) using a light roof
40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

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