Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 179 · 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.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.🏚️ 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
3. 3.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) using a light roof (d) leaving out steel bars
4. 4.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) stacking loose bricks (d) fitting rubber base pads
7. 7.🏚️ 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 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) using flexible joints (d) having a wide base
9. 9.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) raising heavy tanks high (d) having a wide base
11. 11.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
12. 12.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) stacking loose bricks (d) using flexible joints
14. 14.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) fitting rubber base pads
15. 15.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) keeping a simple shape (d) leaving out steel bars
18. 18.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using a heavy roof (d) stacking loose bricks
20. 20.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
21. 21.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) using flexible joints (d) adding steel to concrete
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) adding cross bracing (d) keeping a simple shape
23. 23.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) having a wide base (d) using a light roof
24. 24.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
25. 25.🏚️ 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
26. 26.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ 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 70 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
30. 30.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) using a heavy roof (d) using flexible joints
31. 31.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
32. 32.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) having a wide base (d) adding cross bracing
34. 34.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) making brittle joints (d) building tall and narrow
36. 36.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) stacking loose bricks (d) building tall and narrow
38. 38.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
40. 40.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True

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