Engineering Worksheet: Constraints and Criteria

Engineering lesson 4: Constraints and criteria · Set 160 · 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.📋 Your team’s budget is ₹65. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
2. 2.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) carry 10 coins (c) use only paper and tape (d) float for 1 minute
3. 3.🔍 Which is the odd one out? (a) be under 30 cm tall (b) float for 1 minute (c) use at most 20 straws (d) fit on a school desk
4. 4.True or false: “roll at least 2 metres” is a constraint (a limit). (a) False (b) True
5. 5.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 36 cm tall. Is it within the constraint? (a) Yes (b) No
6. 6.📋 Your team’s budget is ₹63. You must buy one roll of tape for ₹20. Straws cost ₹3 each. What is the greatest number of straws you can buy?
7. 7.🔍 Which is the odd one out? (a) lift a cup of water (b) hold up 500 g (c) keep ice for 1 hour (d) finish in 40 minutes
8. 8.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a constraint (b) a criterion
9. 9.🔍 Which is the odd one out? (a) use only paper and tape (b) be under 30 cm tall (c) fit on a school desk (d) hold up 500 g
10. 10.📋 Your team’s budget is ₹23. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
11. 11.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 650 g. Does it meet the criterion? (a) No (b) Yes
12. 12.📋 Your team’s budget is ₹121. You must buy one roll of tape for ₹20. Straws cost ₹5 each. What is the greatest number of straws you can buy?
13. 13.📋 Your team’s budget is ₹42. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
14. 14.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
15. 15.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 300 g. Does it meet the criterion? (a) Yes (b) No
16. 16.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) yes, always (d) only if it is red
17. 17.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 400 g. Does it meet the criterion? (a) No (b) Yes
18. 18.📋 Your team’s budget is ₹29. You must buy one roll of tape for ₹20. Straws cost ₹1 each. What is the greatest number of straws you can buy?
19. 19.📋 Your team’s budget is ₹52. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
20. 20.📋 Your team’s budget is ₹30. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
21. 21.📋 Your team’s budget is ₹24. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
22. 22.📋 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
23. 23.📋 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
24. 24.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 66 cm tall. Is it within the constraint? (a) No (b) Yes
25. 25.📋 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
26. 26.True or false: “carry 10 coins” is a constraint (a limit). (a) True (b) False
27. 27.📋 For a model bridge challenge, is “lift a cup of water” a constraint or a criterion? (a) a constraint (b) a criterion
28. 28.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a constraint (b) a criterion
29. 29.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a constraint (b) a criterion
30. 30.True or false: “use only paper and tape” is a constraint (a limit). (a) True (b) False
31. 31.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
32. 32.True or false: “lift a cup of water” is a criterion (a goal). (a) True (b) False
33. 33.📋 A constraint is … (a) a final test (b) a limit you must keep to (c) a goal for success (d) a kind of glue
34. 34.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 80 cm tall. Is it within the constraint? (a) Yes (b) No
35. 35.📋 Your team’s budget is ₹44. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
36. 36.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 50 cm tall. Is it within the constraint? (a) Yes (b) No
37. 37.📋 Criteria are … (a) goals a design must meet (b) the limits on money (c) the team names (d) the tools you use
38. 38.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
39. 39.📋 Your team’s budget is ₹26. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
40. 40.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 1050 g. Does it meet the criterion? (a) No (b) Yes

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