Engineering Worksheet: Constraints and Criteria

Engineering lesson 4: Constraints and criteria · Set 690 · 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.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a criterion (b) a constraint
2. 2.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
3. 3.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 700 g. Does it meet the criterion? (a) No (b) Yes
4. 4.📋 Your team’s budget is ₹79. You must buy one roll of tape for ₹10. Straws cost ₹3 each. What is the greatest number of straws you can buy?
5. 5.🔍 Which is the odd one out? (a) use at most 20 straws (b) be under 30 cm tall (c) roll at least 2 metres (d) spend at most ₹100
6. 6.🔍 Which is the odd one out? (a) hold up 500 g (b) float for 1 minute (c) use at most 20 straws (d) lift a cup of water
7. 7.True or false: “be under 30 cm tall” is a constraint (a limit). (a) True (b) False
8. 8.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
9. 9.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
10. 10.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) only if it is red (c) no, it breaks a limit (d) yes, it works
11. 11.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 80 cm tall. Is it within the constraint? (a) No (b) Yes
12. 12.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 72 cm tall. Is it within the constraint? (a) Yes (b) No
13. 13.🔍 Which is the odd one out? (a) finish in 40 minutes (b) spend at most ₹100 (c) lift a cup of water (d) be under 30 cm tall
14. 14.🔍 Which is the odd one out? (a) float for 1 minute (b) spend at most ₹100 (c) fit on a school desk (d) finish in 40 minutes
15. 15.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
16. 16.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 300 g. Does it meet the criterion? (a) No (b) Yes
17. 17.True or false: “fit on a school desk” is a criterion (a goal). (a) True (b) False
18. 18.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
19. 19.🔍 Which is the odd one out? (a) be under 30 cm tall (b) stand in a fan breeze (c) spend at most ₹100 (d) finish in 40 minutes
20. 20.True or false: “finish in 40 minutes” is a constraint (a limit). (a) True (b) False
21. 21.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 74 cm tall. Is it within the constraint? (a) No (b) Yes
22. 22.🔍 Which is the odd one out? (a) use at most 20 straws (b) carry 10 coins (c) finish in 40 minutes (d) fit on a school desk
23. 23.🔍 Which is the odd one out? (a) stand in a fan breeze (b) hold up 500 g (c) use only paper and tape (d) carry 10 coins
24. 24.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 88 cm tall. Is it within the constraint? (a) No (b) Yes
25. 25.📋 Criteria are … (a) goals a design must meet (b) the limits on money (c) the tools you use (d) the team names
26. 26.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 900 g. Does it meet the criterion? (a) No (b) Yes
27. 27.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 400 g. Does it meet the criterion? (a) No (b) Yes
28. 28.📋 Your team’s budget is ₹45. You must buy one roll of tape for ₹20. Straws cost ₹3 each. What is the greatest number of straws you can buy?
29. 29.📋 Your team’s budget is ₹75. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
30. 30.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
31. 31.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 76 cm tall. Is it within the constraint? (a) Yes (b) No
32. 32.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 90 cm tall. Is it within the constraint? (a) No (b) Yes
33. 33.True or false: “finish in 40 minutes” is a criterion (a goal). (a) False (b) True
34. 34.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
35. 35.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
36. 36.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a constraint (b) a criterion
37. 37.🔍 Which is the odd one out? (a) be under 30 cm tall (b) spend at most ₹100 (c) use only paper and tape (d) hold up 500 g
38. 38.🔍 Which is the odd one out? (a) carry 10 coins (b) finish in 40 minutes (c) keep ice for 1 hour (d) lift a cup of water
39. 39.True or false: “stand in a fan breeze” is a criterion (a goal). (a) False (b) True
40. 40.📋 A constraint is … (a) a limit you must keep to (b) a kind of glue (c) a final test (d) a goal for success

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