Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 496 · 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) keeping a simple shape (b) building tall and narrow (c) stacking loose bricks (d) using a heavy roof
2. 2.🏚️ 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 160 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) adding steel to concrete (d) leaving out steel bars
5. 5.🏚️ 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 20 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
6. 6.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
7. 7.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ 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 60 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) having a wide base (d) using a light roof
12. 12.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ 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
14. 14.🔍 Which is the odd one out? (a) adding steel to concrete (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
15. 15.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) using a heavy roof (d) fitting rubber base pads
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
17. 17.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) leaving out steel bars (d) making brittle joints
19. 19.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
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.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) raising heavy tanks high (d) making brittle joints
23. 23.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) keeping a simple shape (d) using a light roof
24. 24.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
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 light roof (b) raising heavy tanks high (c) leaving out steel bars (d) using a heavy roof
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) having a wide base (d) using a heavy roof
30. 30.🏚️ Does making brittle joints 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 less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) keeping a simple shape (d) building tall and narrow
32. 32.🏚️ 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 120 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) fitting rubber base pads (d) leaving out steel bars
34. 34.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
35. 35.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
36. 36.🏚️ 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 60 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) adding cross bracing (d) raising heavy tanks high
38. 38.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) fitting rubber base pads (d) leaving out steel bars
39. 39.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) stacking loose bricks
40. 40.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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