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Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 577 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
  2. 2.Which of these is caused by gravity? (a) brakes stop a bicycle (b) rubbing hands warms them (c) a rolling ball slows (d) a thrown ball comes down
  3. 3.True or false: to share the work fairly is poor teamwork. (a) True (b) False
  4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
  5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
  6. 6.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) No (b) Yes
  7. 7.🔍 Which is the odd one out? (a) a tow rope on a car (b) a table leg (c) a crane lifting cable (d) a hanging lamp chain
  8. 8.🔍 Which is the odd one out? (a) a nut and bolt (b) a screw jack (c) a wood screw (d) a crane hook block
  9. 9.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) hide a failed test (d) measure the same way
  10. 10.Which of these is caused by gravity? (a) a fridge magnet sticks (b) an apple falls down (c) lifting a school bag (d) pedalling a cycle
  11. 11.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  12. 12.🔺 Which strong shape does an electric pylon use? (a) beam (b) dome (c) arch (d) triangle
  13. 13.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) having a wide base (d) leaving out steel bars
  14. 14.Which of these is a wheel and axle? (a) a well-bucket rope wheel (b) a knife edge (c) a chisel (d) a well winch handle
  15. 15.True or false: a squeezed spring is in compression (pushed). (a) True (b) False
  16. 16.🌉 Which bridge type: “deck hangs from cables”? (a) beam bridge (b) arch bridge (c) suspension bridge
  17. 17.🔄 Is the engineering design process done only once? (a) only for big jobs (b) yes, only once (c) only on Sundays (d) no, it repeats
  18. 18.📐 How many metres are in 1 kilometre? (a) 100 (b) 10000 (c) 1000 (d) 10
  19. 19.Which of these is reduce (use less)? (a) give old books away (b) turn plastic into tiles (c) carry a cloth bag (d) pulp old paper
  20. 20.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) Imagine (d) give up
  21. 21.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
  22. 22.True or false: to own up to a mistake is poor teamwork. (a) False (b) True
  23. 23.📐 A beam is 500 cm long. How long is it in metres? =
  24. 24.True or false: a car windscreen needs a flexible material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) glass (b) graphite (c) dry wood (d) plastic
  26. 26.🏋️ A force of 140 N did 420 J of work. How many metres did the object move?
  27. 27.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 42 cm tall. Is it within the constraint? (a) Yes (b) No
  28. 28.🪝 What does a single fixed pulley change? (a) the direction of pull (b) the colour of rope (c) gravity (d) the size of the load
  29. 29.🏋️ A force of 130 N did 260 J of work. How many metres did the object move?
  30. 30.⚖️ In a class 1 lever, what is in the middle? (a) the load (b) nothing (c) the effort (d) the fulcrum
  31. 31.🪝 A load of 600 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
  32. 32.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a constraint (b) a criterion
  33. 33.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 5 N, a wooden plank 8 N, a carpet 12 N. Which surface gave the least friction? (a) a carpet (b) a glass sheet (c) ice (d) a wooden plank
  34. 34.📐 A beam is 720 cm long. How long is it in metres? =
  35. 35.🔺 One side of a straw bridge is a row of 5 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
  36. 36.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
  37. 37.🌉 Which bridge type: “cables tied down at ends”? (a) suspension bridge (b) beam bridge (c) arch bridge
  38. 38.🔍 Which is the odd one out? (a) graphite (b) brass (c) dry wood (d) steel
  39. 39.🪢 Tension or compression: a tall bridge tower? (a) tension (b) compression
  40. 40.📐 A beam is 130 cm long. How long is it in metres? =

Answer key

  1. a movable pulley
  2. a thrown ball comes down
  3. False
  4. safer in earthquakes
  5. low down
  6. Yes
  7. a table leg
  8. a crane hook block
  9. hide a failed test
  10. an apple falls down
  11. class 1
  12. triangle
  13. leaving out steel bars
  14. a well winch handle
  15. True
  16. suspension bridge
  17. no, it repeats
  18. 1000
  19. carry a cloth bag
  20. Improve
  21. rigid
  22. False
  23. 5
  24. False
  25. graphite
  26. 3
  27. No
  28. the direction of pull
  29. 2
  30. the fulcrum
  31. 150
  32. a criterion
  33. ice
  34. 7.2
  35. 11
  36. poor testing
  37. suspension bridge
  38. dry wood
  39. compression
  40. 1.3

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