Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 490 · 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: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
2. 2.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) adding steel to concrete (d) leaving out steel bars
3. 3.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) building tall and narrow (d) adding cross bracing
5. 5.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) having a wide base (d) making brittle joints
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) making brittle joints (d) adding cross bracing
7. 7.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ 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 80 cm tall on a 40 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
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) keeping a simple shape (d) stacking loose bricks
10. 10.🏚️ 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
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) using a heavy roof (d) adding cross bracing
12. 12.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
14. 14.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
15. 15.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) making brittle joints (d) adding steel to concrete
16. 16.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ 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 20 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
18. 18.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
20. 20.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ 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 280 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ 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 40 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 A (b) tower B (c) tower C
26. 26.🏚️ 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 240 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using flexible joints (d) stacking loose bricks
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.🏚️ 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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest 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 60 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) building tall and narrow
33. 33.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) stacking loose bricks (d) using a heavy roof
34. 34.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
35. 35.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) raising heavy tanks high (d) leaving out steel bars
36. 36.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
37. 37.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) building tall and narrow (d) using a light roof
40. 40.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) building tall and narrow (d) making brittle joints

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