Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 611 · 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: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) raising heavy tanks high (d) stacking loose bricks
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) stacking loose bricks (d) building tall and narrow
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
9. 9.🏚️ 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 200 cm tall on a 40 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
11. 11.🏚️ 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 200 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
12. 12.🏚️ 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 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a light roof (c) stacking loose bricks (d) building tall and narrow
14. 14.🏚️ 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 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
15. 15.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) building tall and narrow (d) leaving out steel bars
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) building tall and narrow (d) stacking loose bricks
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using a light roof (d) using a heavy roof
21. 21.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🏚️ 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 80 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 A (b) tower B (c) tower C
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ Does making brittle joints 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 30 cm tall on a 10 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) having a wide base (d) raising heavy tanks high
28. 28.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) adding cross bracing (d) having a wide base
29. 29.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
30. 30.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
31. 31.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) raising heavy tanks high (d) leaving out steel bars
32. 32.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) fitting rubber base pads (d) adding steel to concrete
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 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 easiest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) adding cross bracing (d) fitting rubber base pads

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