Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 181 · 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) leaving out steel bars (b) adding steel to concrete (c) fitting rubber base pads (d) keeping a simple shape
2. 2.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) having a wide base
3. 3.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) making brittle joints (c) having a wide base (d) keeping a simple shape
4. 4.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) building tall and narrow (d) fitting rubber base pads
5. 5.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) using a heavy roof (d) leaving out steel bars
10. 10.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) using a heavy roof (d) keeping a simple shape
11. 11.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
12. 12.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) using flexible joints (d) adding cross bracing
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) raising heavy tanks high (d) adding cross bracing
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) adding steel to concrete (d) raising heavy tanks high
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) fitting rubber base pads (d) having a wide base
17. 17.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) using a light roof (d) stacking loose bricks
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) adding cross bracing (d) fitting rubber base pads
19. 19.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
20. 20.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
22. 22.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding cross bracing (c) stacking loose bricks (d) using a light roof
23. 23.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) using flexible joints (d) leaving out steel bars
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) stacking loose bricks (c) fitting rubber base pads (d) adding steel to concrete
25. 25.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ 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
29. 29.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ 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 50 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
31. 31.🏚️ 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 120 cm tall on a 20 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 B (c) tower A
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) fitting rubber base pads
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 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.🏚️ 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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ 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 120 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 A (b) tower B (c) tower C
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.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) making brittle joints (d) building tall and narrow
39. 39.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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