Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 87 · 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.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) using a heavy roof (d) stacking loose bricks
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) adding steel to concrete (d) making brittle joints
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using flexible joints (d) adding cross bracing
7. 7.🏚️ 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 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) keeping a simple shape (d) using a light roof
9. 9.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
12. 12.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
13. 13.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) using flexible joints (d) adding steel to concrete
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) adding cross bracing
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) making brittle joints (d) raising heavy tanks high
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
20. 20.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) using a heavy roof (d) fitting rubber base pads
24. 24.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
25. 25.🏚️ 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 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) keeping a simple shape (d) making brittle joints
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) having a wide base (d) stacking loose bricks
34. 34.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
35. 35.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
37. 37.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ 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 100 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C

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