Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 234 · 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) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using flexible joints (d) fitting rubber base pads
3. 3.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) stacking loose bricks (d) using a light roof
4. 4.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
5. 5.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
6. 6.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) raising heavy tanks high (d) having a wide base
7. 7.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) using flexible joints (d) stacking loose bricks
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
10. 10.🏚️ 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
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) making brittle joints (d) keeping a simple shape
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) stacking loose bricks (d) building tall and narrow
14. 14.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) using a light roof (d) fitting rubber base pads
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) raising heavy tanks high (d) fitting rubber base pads
16. 16.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) leaving out steel bars (d) adding cross bracing
17. 17.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
18. 18.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) using flexible joints (d) adding steel to concrete
19. 19.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using flexible joints (d) using a heavy roof
21. 21.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
22. 22.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) using a light roof (d) using a heavy roof
27. 27.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) adding cross bracing
28. 28.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
29. 29.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) building tall and narrow
30. 30.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
31. 31.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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
34. 34.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) keeping a simple shape (d) leaving out steel bars
37. 37.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) adding cross bracing (d) using a heavy roof
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A

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