Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 99 · 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.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) fitting rubber base pads (d) using a light roof
3. 3.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) building tall and narrow (d) using a light roof
5. 5.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building safer in earthquakes? (a) having a wide base (b) making brittle joints (c) stacking loose bricks (d) building tall and narrow
7. 7.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
8. 8.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) fitting rubber base pads (d) adding steel to concrete
9. 9.🏚️ 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 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using flexible joints (d) making brittle joints
11. 11.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
12. 12.🏚️ Does using a heavy roof 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 30 cm tall on a 30 cm wide base, tower B is 120 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 C (b) tower A (c) tower B
14. 14.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a heavy roof (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) raising heavy tanks high (d) adding steel to concrete
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 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 C (c) tower A
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using a light roof (d) making brittle joints
20. 20.🏚️ 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 30 cm tall on a 10 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
21. 21.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) using a light roof (d) stacking loose bricks
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
23. 23.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.Which of these makes a building safer in earthquakes? (a) using a light roof (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
25. 25.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
26. 26.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) raising heavy tanks high
27. 27.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
28. 28.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
30. 30.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) making brittle joints (d) leaving out steel bars
31. 31.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ 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 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
33. 33.🏚️ 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 160 cm tall on a 40 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 B (c) tower C
34. 34.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
35. 35.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) adding steel to concrete (d) using a light roof
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) keeping a simple shape (d) using a heavy roof
38. 38.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
39. 39.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) keeping a simple shape
40. 40.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) raising heavy tanks high (d) using a heavy roof

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