Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 214 · 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) building tall and narrow (b) adding steel to concrete (c) stacking loose bricks (d) using a heavy roof
2. 2.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
5. 5.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) having a wide base (d) raising heavy tanks high
6. 6.🏚️ 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
7. 7.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ 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 20 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) building tall and narrow (d) stacking loose bricks
11. 11.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ 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 280 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 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 A (b) tower C (c) tower B
17. 17.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) stacking loose bricks (d) leaving out steel bars
18. 18.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) leaving out steel bars (d) adding cross bracing
20. 20.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) stacking loose bricks (d) building tall and narrow
21. 21.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) keeping a simple shape (d) adding steel to concrete
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) keeping a simple shape (d) adding cross bracing
23. 23.🏚️ 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
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
25. 25.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) leaving out steel bars (d) using a light roof
26. 26.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) making brittle joints (d) using a light roof
27. 27.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) building tall and narrow (d) using a heavy roof
28. 28.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
29. 29.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) raising heavy tanks high (d) making brittle joints
32. 32.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
33. 33.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ 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 120 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) adding steel to concrete (d) using a heavy roof
36. 36.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) having a wide base (d) using a heavy roof
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 160 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
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 240 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ 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 40 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ 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 100 cm tall on a 20 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 C (c) tower B

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