Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 73 · 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.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
3. 3.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using flexible joints (c) fitting rubber base pads (d) stacking loose bricks
4. 4.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) keeping a simple shape
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) using flexible joints
7. 7.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) building tall and narrow (d) adding steel to concrete
8. 8.🏚️ 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 150 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🏚️ 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
10. 10.🏚️ 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 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) adding cross bracing (d) stacking loose bricks
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 10 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
13. 13.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) adding steel to concrete (d) using a heavy roof
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 60 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 C (b) tower B (c) tower A
15. 15.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 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
18. 18.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) having a wide base (d) using a heavy roof
19. 19.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) making brittle joints (d) using a light roof
20. 20.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) adding steel to concrete (d) building tall and narrow
21. 21.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) building tall and narrow (d) having a wide base
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 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
23. 23.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) adding cross bracing (d) leaving out steel bars
24. 24.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
29. 29.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
30. 30.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) fitting rubber base pads (d) using flexible joints
31. 31.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
32. 32.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) adding steel to concrete (d) fitting rubber base pads
33. 33.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
35. 35.🏚️ 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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
36. 36.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False

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