Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 260 · 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: pulling a cart is a push. (a) False (b) True
2. 2.🤝 Why do engineers work in teams? (a) to argue more (b) to work alone (c) to finish nothing (d) many skills and ideas
3. 3.🔧 Which tool would you use to turn a screw? (a) a spanner (b) a spirit level (c) a screwdriver (d) a hammer
4. 4.True or false: to ignore the team plan is good teamwork. (a) True (b) False
5. 5.🪝 A well winch has a handle (wheel) of radius 2 cm turning an axle of radius 1 cm. What is its mechanical advantage (MA)?
6. 6.True or false: to ask who will use it is the Test step. (a) True (b) False
7. 7.🔄 Which design-process step is it to brainstorm many ideas? (a) Plan (b) Ask (c) Improve (d) Imagine
8. 8.🧪 A paper bridge was tested three times. It held 340 g, 280 g and 250 g. What is the mean (average) load it held, in grams?
9. 9.True or false: “roll at least 2 metres” is a criterion (a goal). (a) False (b) True
10. 10.⚖️ A seesaw balances. Asha (? N) sits 2 m from the pivot on one side; Zoya (360 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
11. 11.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
12. 12.🪝 A well winch has a handle (wheel) of radius 15 cm turning an axle of radius 3 cm. What is its mechanical advantage (MA)?
13. 13.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) the youngest child (c) an adult (d) any child alone
14. 14.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 1 N, a wooden plank 3 N, a carpet 4 N, sandpaper 7 N. How many newtons more were needed on sandpaper than on a glass sheet?
15. 15.🛞 Is friction helpful or a problem here: tyres wearing down? (a) helpful (b) a problem
16. 16.True or false: a beam balance is a class 3 lever (effort in the middle). (a) False (b) True
17. 17.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the size of the load (c) the direction of pull (d) gravity
18. 18.🏋️ A force of 320 N pushes a cart 10 m along the floor. How much work is done, in joules?
19. 19.🛞 Which surface gives the MOST friction to a sliding block? (a) glass (b) polished marble (c) sandpaper (d) ice
20. 20.🔺 Which strong shape does a curved stone doorway use? (a) beam (b) arch (c) dome (d) triangle
21. 21.🤝 In a design team, who writes down results? (a) team leader (b) materials manager (c) recorder (d) tester
22. 22.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) choose and draw one (d) load it with coins
23. 23.⚖️ Which class of lever is a pair of tweezers? (a) class 3 (b) class 1 (c) class 2
24. 24.🏋️ A force of 280 N pushes a cart 6 m along the floor. How much work is done, in joules?
25. 25.🛠️ Is a river made by engineers or found in nature? (a) made by engineers (b) found in nature
26. 26.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 86 cm tall. Is it within the constraint? (a) Yes (b) No
27. 27.Which of these is an arch bridge? (a) pushes out on its ends (b) cables tied down at ends (c) a flat deck on piers (d) a rope bridge in hills
28. 28.🔍 Which is the odd one out? (a) a table leg (b) a tall bridge tower (c) a crane lifting cable (d) a bridge pier
29. 29.🏋️ A longer ramp to the same height needs … (a) the same effort (b) more effort (c) no effort (d) less effort
30. 30.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) True (b) False
31. 31.📐 On a plan, 1 cm stands for 20 m. A real bridge is 80 m long. How long is it on the plan, in centimetres?
32. 32.⚖️ A lever bar balances. The load is 420 N at 20 cm from the fulcrum. The effort is ? N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
33. 33.🌉 In a suspension bridge, the main cables are in … (a) compression (b) tension (c) friction (d) no force
34. 34.True or false: a solar panel helps people make power from sunlight. (a) True (b) False
35. 35.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) chemical (b) civil (c) mechanical (d) electrical
36. 36.🔺 One side of a straw bridge is a row of 1 triangle standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
37. 37.🌉 What holds up a long beam bridge in the middle? (a) cables only (b) piers (c) nothing (d) balloons
38. 38.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
39. 39.🔺 Which strong shape does a shelf on two brackets use? (a) dome (b) beam (c) arch (d) triangle
40. 40.Which of these is a suspension bridge? (a) stones squeezed together (b) pushes out on its ends (c) tall towers hold cables (d) a log across a stream

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