Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 876 · 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 less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) building tall and narrow (d) keeping a simple shape
2. 2.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
4. 4.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
5. 5.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
6. 6.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) adding steel to concrete (d) having a wide base
7. 7.🏚️ 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 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using a heavy roof (d) having a wide base
9. 9.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) raising heavy tanks high (d) using flexible joints
10. 10.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) adding cross bracing
12. 12.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) leaving out steel bars (d) raising heavy tanks high
14. 14.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
18. 18.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) using a light roof
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) leaving out steel bars (d) using a heavy roof
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) raising heavy tanks high (d) stacking loose bricks
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) low down (d) on the very top
22. 22.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) keeping a simple shape (d) fitting rubber base pads
23. 23.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) adding cross bracing (d) keeping a simple shape
24. 24.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) keeping a simple shape (d) building tall and narrow
25. 25.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
27. 27.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) adding steel to concrete (d) fitting rubber base pads
28. 28.🏚️ 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 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
31. 31.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) using a heavy roof (d) making brittle joints
34. 34.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
37. 37.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
38. 38.🏚️ 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 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) leaving out steel bars (d) having a wide base

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