Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 479 · 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.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 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
3. 3.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) making brittle joints (d) having a wide base
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does stacking loose bricks 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) raising heavy tanks high (b) adding steel to concrete (c) adding cross bracing (d) having a wide base
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using a light roof (d) adding steel to concrete
8. 8.🏚️ 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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ 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 90 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 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 cross bracing (b) using a light roof (c) using flexible joints (d) stacking loose bricks
11. 11.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) adding cross bracing
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
15. 15.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
17. 17.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) using a light roof
19. 19.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
20. 20.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) building tall and narrow (d) using flexible joints
21. 21.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) using a light roof (d) making brittle joints
23. 23.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) stacking loose bricks (d) adding steel to concrete
24. 24.🏚️ 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 20 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 B (c) tower A
25. 25.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 80 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🏚️ 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 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
30. 30.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
31. 31.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) adding cross bracing (d) keeping a simple shape
32. 32.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
33. 33.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) building tall and narrow (d) adding cross bracing
34. 34.🏚️ 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
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.🏚️ 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 150 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) having a wide base (d) leaving out steel bars
38. 38.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) using a light roof (d) adding cross bracing
39. 39.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False

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