Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 896 · 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) keeping a simple shape (b) using flexible joints (c) stacking loose bricks (d) adding cross bracing
2. 2.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
3. 3.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) keeping a simple shape (d) adding cross bracing
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using flexible joints (d) raising heavy tanks high
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
7. 7.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
8. 8.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) stacking loose bricks (d) keeping a simple shape
9. 9.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
10. 10.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) adding steel to concrete (d) leaving out steel bars
11. 11.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) stacking loose bricks (d) using a heavy roof
12. 12.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) having a wide base (d) building tall and narrow
13. 13.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) fitting rubber base pads (d) raising heavy tanks high
16. 16.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ 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 40 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ 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 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) using a heavy roof (d) adding cross bracing
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) leaving out steel bars (c) making brittle joints (d) raising heavy tanks high
25. 25.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) adding cross bracing (d) using a light roof
26. 26.🏚️ 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 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) keeping a simple shape (d) using flexible joints
28. 28.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) using flexible joints (d) using a light roof
29. 29.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) raising heavy tanks high (b) having a wide base (c) using flexible joints (d) keeping a simple shape
31. 31.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) keeping a simple shape (d) stacking loose bricks
32. 32.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 180 cm tall on a 30 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 C (c) tower B
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) keeping a simple shape (d) building tall and narrow
39. 39.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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