Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 345 · 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 making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
4. 4.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ 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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using flexible joints (c) making brittle joints (d) leaving out steel bars
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) keeping a simple shape
8. 8.🏚️ 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
9. 9.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
10. 10.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) making brittle joints
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) making brittle joints
12. 12.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
13. 13.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
15. 15.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
16. 16.🏚️ 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 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
17. 17.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) having a wide base (d) building tall and narrow
18. 18.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) stacking loose bricks (d) having a wide base
19. 19.🏚️ 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 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 A (c) tower B
20. 20.🏚️ 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 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🏚️ 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
22. 22.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 40 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 B (b) tower C (c) tower A
24. 24.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) stacking loose bricks (d) building tall and narrow
25. 25.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) leaving out steel bars (d) keeping a simple shape
29. 29.🏚️ 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 20 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
30. 30.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) using flexible joints (d) adding cross bracing
32. 32.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
34. 34.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) stacking loose bricks
35. 35.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) using a light roof (d) fitting rubber base pads
36. 36.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) fitting rubber base pads (d) having a wide base
38. 38.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 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 hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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