Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 442 · 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 having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) using a heavy roof (d) fitting rubber base pads
3. 3.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) using a heavy roof (d) having a wide base
4. 4.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
5. 5.🏚️ 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
6. 6.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) stacking loose bricks (d) using flexible joints
7. 7.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) stacking loose bricks (d) adding steel to concrete
8. 8.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) making brittle joints (d) adding steel to concrete
9. 9.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) using a heavy roof (d) building tall and narrow
10. 10.🏚️ 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 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) leaving out steel bars (d) raising heavy tanks high
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) using flexible joints (d) building tall and narrow
13. 13.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) making brittle joints (d) stacking loose bricks
14. 14.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) stacking loose bricks (d) raising heavy tanks high
16. 16.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) leaving out steel bars (d) fitting rubber base pads
17. 17.🏚️ 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 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.🏚️ 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 80 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 40 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 C (b) tower A (c) tower B
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) stacking loose bricks (d) having a wide base
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ 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 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
25. 25.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
27. 27.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
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 160 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) using a light roof
32. 32.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) building tall and narrow (d) using a heavy roof
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) using a heavy roof (d) having a wide base
35. 35.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
36. 36.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
37. 37.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
39. 39.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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