Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 184 · 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 using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is lighter (d) it is colourful
3. 3.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) having a wide base (d) fitting rubber base pads
4. 4.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
6. 6.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) building tall and narrow (d) having a wide base
7. 7.🏚️ 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 10 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.🏚️ 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 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 60 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 A (b) tower C (c) tower B
10. 10.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
11. 11.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) making brittle joints (d) using a heavy roof
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 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
14. 14.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
15. 15.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) adding cross bracing (d) adding steel to concrete
16. 16.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) building tall and narrow (d) using a heavy roof
17. 17.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) using a heavy roof (d) stacking loose bricks
18. 18.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) raising heavy tanks high (d) leaving out steel bars
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
21. 21.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ 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 10 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ 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 40 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a light roof (d) using a heavy roof
28. 28.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) building tall and narrow (c) keeping a simple shape (d) adding steel to concrete
29. 29.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 150 cm tall on a 30 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 B (c) tower C
31. 31.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ 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 200 cm tall on a 40 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 C (c) tower A
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
36. 36.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
37. 37.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) leaving out steel bars (d) raising heavy tanks high
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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