Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 731 · 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.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using flexible joints (d) stacking loose bricks
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) fitting rubber base pads
4. 4.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ 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 200 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 B (b) tower A (c) tower C
10. 10.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) making brittle joints (d) raising heavy tanks high
13. 13.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) using a light roof (d) using a heavy roof
16. 16.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) raising heavy tanks high (d) stacking loose bricks
17. 17.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
18. 18.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) using flexible joints (d) using a light roof
19. 19.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) keeping a simple shape (d) using a heavy roof
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 40 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 C (b) tower A (c) tower B
22. 22.🏚️ 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 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
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.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) using a light roof
26. 26.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
27. 27.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) making brittle joints (d) raising heavy tanks high
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) using a heavy roof (d) stacking loose bricks
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ 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 60 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
33. 33.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ 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 30 cm tall on a 30 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
35. 35.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
36. 36.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) using a light roof (d) using a heavy roof
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) adding cross bracing (d) making brittle joints
38. 38.🏚️ 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 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False

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