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”.
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- 1.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
- 2.🔍 Which is the odd one out? (a) finish in 40 minutes (b) be under 30 cm tall (c) carry 10 coins (d) spend at most ₹100
- 3.🔍 Which is the odd one out? (a) use at most 20 straws (b) be under 30 cm tall (c) lift a cup of water (d) spend at most ₹100
- 4.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 36 cm tall. Is it within the constraint? (a) No (b) Yes
- 5.True or false: “hold up 500 g” is a criterion (a goal). (a) False (b) True
- 6.🔍 Which is the odd one out? (a) spend at most ₹100 (b) finish in 40 minutes (c) hold up 500 g (d) be under 30 cm tall
- 7.📋 For a model bridge challenge, is “spend at most ₹100” a constraint or a criterion? (a) a constraint (b) a criterion
- 8.📋 A constraint is … (a) a kind of glue (b) a limit you must keep to (c) a goal for success (d) a final test
- 9.📋 Criteria are … (a) the team names (b) goals a design must meet (c) the limits on money (d) the tools you use
- 10.📋 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) yes, always (d) no, it breaks a limit
- 11.True or false: “roll at least 2 metres” is a constraint (a limit). (a) False (b) True
- 12.📋 Your team’s budget is ₹56. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
- 13.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
- 14.True or false: “use at most 20 straws” is a constraint (a limit). (a) True (b) False
- 15.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a criterion (b) a constraint
- 16.🔍 Which is the odd one out? (a) spend at most ₹100 (b) finish in 40 minutes (c) be under 30 cm tall (d) roll at least 2 metres
- 17.📋 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
- 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.📋 Your team’s budget is ₹85. You must buy one roll of tape for ₹20. Straws cost ₹5 each. What is the greatest number of straws you can buy?
- 20.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 900 g. Does it meet the criterion? (a) No (b) Yes
- 21.🔍 Which is the odd one out? (a) finish in 40 minutes (b) float for 1 minute (c) keep ice for 1 hour (d) hold up 500 g
- 22.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 1000 g. Does it meet the criterion? (a) No (b) Yes
- 23.True or false: “finish in 40 minutes” is a constraint (a limit). (a) False (b) True
- 24.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 950 g. Does it meet the criterion? (a) Yes (b) No
- 25.True or false: “be under 30 cm tall” is a constraint (a limit). (a) True (b) False
- 26.📋 Your team’s budget is ₹39. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
- 27.True or false: “be under 30 cm tall” is a criterion (a goal). (a) False (b) True
- 28.True or false: “fit on a school desk” is a constraint (a limit). (a) True (b) False
- 29.🔍 Which is the odd one out? (a) fit on a school desk (b) stand in a fan breeze (c) keep ice for 1 hour (d) hold up 500 g
- 30.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 550 g. Does it meet the criterion? (a) Yes (b) No
- 31.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 28 cm tall. Is it within the constraint? (a) No (b) Yes
- 32.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) Yes (b) No
- 33.📋 Your team’s budget is ₹19. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
- 34.🔍 Which is the odd one out? (a) use at most 20 straws (b) float for 1 minute (c) spend at most ₹100 (d) use only paper and tape
- 35.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) Yes (b) No
- 36.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
- 37.🔍 Which is the odd one out? (a) be under 30 cm tall (b) use only paper and tape (c) spend at most ₹100 (d) stand in a fan breeze
- 38.True or false: “hold up 500 g” is a constraint (a limit). (a) True (b) False
- 39.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 34 cm tall. Is it within the constraint? (a) Yes (b) No
- 40.📋 Your team’s budget is ₹162. 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
- Yes
- carry 10 coins
- lift a cup of water
- No
- True
- hold up 500 g
- a constraint
- a limit you must keep to
- goals a design must meet
- no, it breaks a limit
- False
- 11
- a criterion
- True
- a criterion
- roll at least 2 metres
- Yes
- No
- 13
- No
- finish in 40 minutes
- Yes
- True
- Yes
- True
- 9
- False
- True
- fit on a school desk
- No
- Yes
- Yes
- 7
- float for 1 minute
- No
- a constraint
- stand in a fan breeze
- False
- Yes
- 29
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