Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 820 · 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 leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
3. 3.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) raising heavy tanks high (d) adding cross bracing
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ 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 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
7. 7.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) leaving out steel bars (d) having a wide base
8. 8.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) adding steel to concrete (d) adding cross bracing
9. 9.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) making brittle joints (d) adding steel to concrete
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) adding steel to concrete
14. 14.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
15. 15.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) adding cross bracing (d) using flexible joints
17. 17.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) having a wide base (d) adding cross bracing
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) making brittle joints (d) stacking loose bricks
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) having a wide base (d) leaving out steel bars
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 120 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 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ Does stacking loose bricks 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) using flexible joints (b) having a wide base (c) using a light roof (d) stacking loose bricks
24. 24.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) fitting rubber base pads (d) having a wide base
28. 28.🏚️ 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 30 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
29. 29.🏚️ 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 40 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) leaving out steel bars (d) adding cross bracing
31. 31.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) making brittle joints
32. 32.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) raising heavy tanks high
34. 34.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) making brittle joints
35. 35.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
36. 36.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) using a light roof (d) building tall and narrow
38. 38.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
39. 39.🏚️ 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 120 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 A (b) tower B (c) tower C
40. 40.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) fitting rubber base pads

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