Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 916 · 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.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ 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 40 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
3. 3.🏚️ Does building tall and narrow 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 safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
5. 5.🏚️ 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 20 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ 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
8. 8.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) using a light roof
12. 12.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) keeping a simple shape
13. 13.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) using a heavy roof (d) raising heavy tanks high
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
16. 16.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) adding cross bracing (d) using a heavy roof
17. 17.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) using flexible joints (d) adding cross bracing
18. 18.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) leaving out steel bars (d) adding steel to concrete
19. 19.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
21. 21.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) leaving out steel bars (d) using flexible joints
22. 22.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) fitting rubber base pads
24. 24.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using flexible joints (d) raising heavy tanks high
25. 25.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) making brittle joints (d) having a wide base
26. 26.🏚️ 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 50 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🔍 Which is the odd one out? (a) raising heavy tanks high (b) having a wide base (c) stacking loose bricks (d) using a heavy roof
28. 28.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
29. 29.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Does adding steel to concrete 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) leaving out steel bars (b) stacking loose bricks (c) making brittle joints (d) adding steel to concrete
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) raising heavy tanks high (d) using a heavy roof
33. 33.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) using a heavy roof (d) leaving out steel bars
35. 35.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
37. 37.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 210 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) adding cross bracing (d) fitting rubber base pads

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