Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 463 · 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) building tall and narrow (b) fitting rubber base pads (c) using a light roof (d) adding cross bracing
2. 2.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) building tall and narrow (d) leaving out steel bars
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) leaving out steel bars (d) building tall and narrow
5. 5.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) raising heavy tanks high (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) stacking loose bricks (d) building tall and narrow
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
8. 8.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
11. 11.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using flexible joints (c) having a wide base (d) keeping a simple shape
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
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 30 cm tall on a 10 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
15. 15.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
16. 16.🏚️ 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 60 cm tall on a 30 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
17. 17.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
18. 18.Which of these makes a building safer in earthquakes? (a) using a light roof (b) leaving out steel bars (c) using a heavy roof (d) stacking loose bricks
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) keeping a simple shape (d) using a heavy roof
20. 20.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
21. 21.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) building tall and narrow (d) adding cross bracing
24. 24.🏚️ Does fitting rubber base pads 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 less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) using flexible joints (d) making brittle joints
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) making brittle joints (d) adding cross bracing
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 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 C (c) tower A
29. 29.🏚️ 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 120 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🏚️ 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 60 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 A (c) tower C
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) stacking loose bricks
32. 32.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) using a heavy roof (d) using a light roof
34. 34.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) using flexible joints
35. 35.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
36. 36.🏚️ 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 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
37. 37.🏚️ 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 60 cm tall on a 30 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
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
39. 39.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
40. 40.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 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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