Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 795 · 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 safer in earthquakes? (a) having a wide base (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
2. 2.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
3. 3.🏚️ 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 20 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) making brittle joints (d) adding cross bracing
5. 5.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) keeping a simple shape (d) stacking loose bricks
9. 9.🏚️ 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
10. 10.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) making brittle joints (d) adding cross bracing
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) leaving out steel bars (d) using a heavy roof
12. 12.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
13. 13.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) adding cross bracing (d) building tall and narrow
14. 14.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) adding cross bracing (d) using a light roof
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) raising heavy tanks high (d) adding steel to concrete
16. 16.🏚️ 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 30 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) using a heavy roof
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) using flexible joints (d) adding steel to concrete
19. 19.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) keeping a simple shape (d) leaving out steel bars
21. 21.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ 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 40 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) having a wide base (d) building tall and narrow
25. 25.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) using a heavy roof (d) raising heavy tanks high
26. 26.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a light roof (d) stacking loose bricks
27. 27.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) leaving out steel bars (d) keeping a simple shape
28. 28.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) using a light roof (d) using flexible joints
30. 30.🏚️ 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 40 cm tall on a 10 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
31. 31.🏚️ 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 50 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 B (b) tower C (c) tower A
32. 32.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ 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 30 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) fitting rubber base pads (d) using flexible joints
35. 35.🏚️ 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 240 cm tall on a 30 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 B (c) tower C
36. 36.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) having a wide base (d) adding steel to concrete
38. 38.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ 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 120 cm tall on a 40 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 A (c) tower B
40. 40.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A

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