Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 64 · 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 raising heavy tanks high 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 120 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 240 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 is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) fitting rubber base pads (d) using a light roof
4. 4.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
5. 5.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) having a wide base (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) adding steel to concrete (d) using flexible joints
7. 7.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) using flexible joints (d) leaving out steel bars
8. 8.🏚️ 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
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) using flexible joints (d) adding cross bracing
11. 11.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) using a light roof (d) building tall and narrow
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) raising heavy tanks high (d) using a light roof
17. 17.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
18. 18.🏚️ 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 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 A (b) tower B (c) tower C
19. 19.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) raising heavy tanks high (d) using flexible joints
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) stacking loose bricks
21. 21.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) using flexible joints (d) building tall and narrow
23. 23.🏚️ 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 30 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
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) stacking loose bricks
25. 25.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
26. 26.🏚️ 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 210 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
28. 28.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) fitting rubber base pads (d) stacking loose bricks
30. 30.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) using a heavy roof (d) leaving out steel bars
31. 31.🏚️ 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 120 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🏚️ 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
33. 33.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) having a wide base
34. 34.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) using flexible joints (d) fitting rubber base pads
35. 35.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
36. 36.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 30 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
39. 39.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
40. 40.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False

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