Engineering Worksheet: Constraints and Criteria

Engineering lesson 4: Constraints and criteria · Set 229 · 40 questions

Engineer's tip (Limits and goals): Constraint = a limit on money, materials, time or size. Criterion = a goal: what the design must do. Check both with numbers: money left ÷ price for how many you can buy; result ≥ goal for “meets it”.

1. 1.🔍 Which is the odd one out? (a) finish in 40 minutes (b) keep ice for 1 hour (c) lift a cup of water (d) float for 1 minute
2. 2.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 550 g. Does it meet the criterion? (a) No (b) Yes
3. 3.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 78 cm tall. Is it within the constraint? (a) Yes (b) No
4. 4.🔍 Which is the odd one out? (a) use only paper and tape (b) finish in 40 minutes (c) lift a cup of water (d) be under 30 cm tall
5. 5.🔍 Which is the odd one out? (a) use at most 20 straws (b) be under 30 cm tall (c) fit on a school desk (d) roll at least 2 metres
6. 6.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 950 g. Does it meet the criterion? (a) No (b) Yes
7. 7.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
8. 8.📋 Your team’s budget is ₹41. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
9. 9.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a constraint (b) a criterion
10. 10.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
11. 11.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a constraint (b) a criterion
12. 12.True or false: “finish in 40 minutes” is a constraint (a limit). (a) False (b) True
13. 13.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 94 cm tall. Is it within the constraint? (a) Yes (b) No
14. 14.📋 Your team’s budget is ₹57. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
15. 15.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a criterion (b) a constraint
16. 16.True or false: “lift a cup of water” is a criterion (a goal). (a) False (b) True
17. 17.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) yes, it works (c) only if it is red (d) no, it breaks a limit
18. 18.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 100 g. Does it meet the criterion? (a) Yes (b) No
19. 19.📋 Your team’s budget is ₹110. You must buy one roll of tape for ₹15. Straws cost ₹4 each. What is the greatest number of straws you can buy?
20. 20.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
21. 21.📋 Your team’s budget is ₹27. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
22. 22.📋 Your team’s budget is ₹83. You must buy one roll of tape for ₹15. Straws cost ₹3 each. What is the greatest number of straws you can buy?
23. 23.📋 Your team’s budget is ₹29. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
24. 24.True or false: “fit on a school desk” is a constraint (a limit). (a) False (b) True
25. 25.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 82 cm tall. Is it within the constraint? (a) Yes (b) No
26. 26.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 1150 g. Does it meet the criterion? (a) Yes (b) No
27. 27.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
28. 28.📋 Your team’s budget is ₹28. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
29. 29.True or false: “fit on a school desk” is a criterion (a goal). (a) False (b) True
30. 30.📋 Criteria are … (a) the limits on money (b) the tools you use (c) goals a design must meet (d) the team names
31. 31.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 450 g. Does it meet the criterion? (a) Yes (b) No
32. 32.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 66 cm tall. Is it within the constraint? (a) Yes (b) No
33. 33.📋 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
34. 34.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
35. 35.📋 Your team’s budget is ₹47. You must buy one roll of tape for ₹15. Straws cost ₹4 each. What is the greatest number of straws you can buy?
36. 36.🔍 Which is the odd one out? (a) use only paper and tape (b) fit on a school desk (c) finish in 40 minutes (d) hold up 500 g
37. 37.📋 Your team’s budget is ₹29. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
38. 38.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a final test (d) a limit you must keep to
39. 39.True or false: “use only paper and tape” is a criterion (a goal). (a) False (b) True
40. 40.📋 Your team’s budget is ₹152. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?

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