Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 83 · 40 questions

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

1. 1.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) making brittle joints (d) adding steel to concrete
3. 3.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
4. 4.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) stacking loose bricks (d) leaving out steel bars
6. 6.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) using a light roof (d) building tall and narrow
8. 8.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
12. 12.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) using flexible joints (d) raising heavy tanks high
14. 14.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
16. 16.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using flexible joints (c) raising heavy tanks high (d) using a heavy roof
17. 17.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) making brittle joints (d) raising heavy tanks high
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding steel to concrete (d) building tall and narrow
27. 27.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) adding cross bracing (d) adding steel to concrete
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) adding cross bracing (d) keeping a simple shape
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) raising heavy tanks high (d) stacking loose bricks
35. 35.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) using a heavy roof (d) making brittle joints
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 160 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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