Engineering Worksheet: Constraints and Criteria
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”.
NameDateTime takenScore ___ / 40
- 1.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
- 2.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
- 3.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 200 g. Does it meet the criterion? (a) Yes (b) No
- 4.🔍 Which is the odd one out? (a) fit on a school desk (b) use at most 20 straws (c) stand in a fan breeze (d) spend at most ₹100
- 5.📋 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?
- 6.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 850 g. Does it meet the criterion? (a) Yes (b) No
- 7.True or false: “roll at least 2 metres” is a criterion (a goal). (a) False (b) True
- 8.📋 A constraint is … (a) a kind of glue (b) a goal for success (c) a limit you must keep to (d) a final test
- 9.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 950 g. Does it meet the criterion? (a) Yes (b) No
- 10.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
- 11.📋 Your team’s budget is ₹47. You must buy one roll of tape for ₹20. Straws cost ₹1 each. What is the greatest number of straws you can buy?
- 12.🔍 Which is the odd one out? (a) carry 10 coins (b) roll at least 2 metres (c) use only paper and tape (d) stand in a fan breeze
- 13.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1050 g. Does it meet the criterion? (a) No (b) Yes
- 14.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 44 cm tall. Is it within the constraint? (a) Yes (b) No
- 15.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 48 cm tall. Is it within the constraint? (a) Yes (b) No
- 16.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 38 cm tall. Is it within the constraint? (a) Yes (b) No
- 17.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1000 g. Does it meet the criterion? (a) Yes (b) No
- 18.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 74 cm tall. Is it within the constraint? (a) Yes (b) No
- 19.True or false: “lift a cup of water” is a constraint (a limit). (a) False (b) True
- 20.📋 Your team’s budget is ₹42. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
- 21.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 850 g. Does it meet the criterion? (a) Yes (b) No
- 22.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) fit on a school desk (c) carry 10 coins (d) stand in a fan breeze
- 23.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
- 24.📋 Your team’s budget is ₹50. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
- 25.True or false: “finish in 40 minutes” is a constraint (a limit). (a) True (b) False
- 26.📋 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
- 27.📋 Criteria are … (a) the team names (b) the tools you use (c) goals a design must meet (d) the limits on money
- 28.🔍 Which is the odd one out? (a) use at most 20 straws (b) float for 1 minute (c) be under 30 cm tall (d) use only paper and tape
- 29.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) only if it is red (c) no, it breaks a limit (d) yes, always
- 30.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 56 cm tall. Is it within the constraint? (a) Yes (b) No
- 31.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
- 32.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 250 g. Does it meet the criterion? (a) Yes (b) No
- 33.📋 Your team’s budget is ₹45. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
- 34.📋 Your team’s budget is ₹25. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
- 35.🔍 Which is the odd one out? (a) roll at least 2 metres (b) float for 1 minute (c) finish in 40 minutes (d) carry 10 coins
- 36.📋 Your team’s budget is ₹154. You must buy one roll of tape for ₹20. Straws cost ₹5 each. What is the greatest number of straws you can buy?
- 37.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 200 g. Does it meet the criterion? (a) Yes (b) No
- 38.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) roll at least 2 metres (c) use at most 20 straws (d) float for 1 minute
- 39.📋 Your team’s budget is ₹88. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
- 40.📋 Your team’s budget is ₹96. You must buy one roll of tape for ₹15. Straws cost ₹5 each. What is the greatest number of straws you can buy?
Answer key
- a constraint
- a constraint
- Yes
- stand in a fan breeze
- 12
- Yes
- True
- a limit you must keep to
- No
- a criterion
- 27
- use only paper and tape
- Yes
- No
- Yes
- Yes
- Yes
- No
- False
- 18
- No
- fit on a school desk
- a constraint
- 15
- True
- No
- goals a design must meet
- float for 1 minute
- no, it breaks a limit
- No
- a criterion
- No
- 6
- 20
- finish in 40 minutes
- 26
- No
- use at most 20 straws
- 19
- 16
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