Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 934 · 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) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) using flexible joints
2. 2.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) fitting rubber base pads (d) having a wide base
6. 6.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) having a wide base
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
8. 8.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) raising heavy tanks high (d) stacking loose bricks
9. 9.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) making brittle joints (d) adding cross bracing
11. 11.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) stacking loose bricks (d) fitting rubber base pads
13. 13.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
14. 14.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) fitting rubber base pads (d) adding cross bracing
16. 16.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) raising heavy tanks high (d) fitting rubber base pads
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) stacking loose bricks (d) using flexible joints
19. 19.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ 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 40 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ 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 120 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🏚️ 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 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) fitting rubber base pads (d) raising heavy tanks high
26. 26.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
27. 27.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) making brittle joints (d) stacking loose bricks
28. 28.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) using flexible joints (d) using a heavy roof
29. 29.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
30. 30.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
31. 31.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
33. 33.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) stacking loose bricks
34. 34.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
37. 37.🏚️ 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 60 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 30 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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