Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 480 · 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) safer in earthquakes (b) less safe
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) using a heavy roof
3. 3.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) raising heavy tanks high (d) building tall and narrow
4. 4.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
6. 6.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) leaving out steel bars (d) adding cross bracing
7. 7.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
9. 9.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is taller (d) it is lighter
10. 10.🏚️ 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 120 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ 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 70 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
14. 14.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using flexible joints (d) making brittle joints
16. 16.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
17. 17.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) having a wide base (d) fitting rubber base pads
18. 18.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) making brittle joints (d) using a light roof
19. 19.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
20. 20.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ 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 150 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) making brittle joints (d) leaving out steel bars
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 20 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
24. 24.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
25. 25.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) making brittle joints (d) adding cross bracing
27. 27.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding steel to concrete (d) using a heavy roof
29. 29.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
30. 30.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) keeping a simple shape (d) using flexible joints
32. 32.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) having a wide base
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ 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 50 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 B (b) tower C (c) tower A
35. 35.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
36. 36.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) leaving out steel bars (d) keeping a simple shape
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) stacking loose bricks (d) building tall and narrow
40. 40.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True

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