Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 451 · 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 is the odd one out? (a) building tall and narrow (b) having a wide base (c) making brittle joints (d) using a heavy roof
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ Does adding cross bracing 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) stacking loose bricks (b) keeping a simple shape (c) making brittle joints (d) building tall and narrow
5. 5.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
6. 6.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) keeping a simple shape (d) having a wide base
7. 7.🏚️ 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 150 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
10. 10.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
11. 11.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) using a light roof
12. 12.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 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
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) fitting rubber base pads (d) making brittle joints
15. 15.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
16. 16.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
17. 17.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) fitting rubber base pads (c) adding cross bracing (d) using flexible joints
18. 18.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) using a heavy roof (d) building tall and narrow
20. 20.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ 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 80 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.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) making brittle joints
23. 23.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
24. 24.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
28. 28.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) adding cross bracing (d) using a light roof
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) leaving out steel bars (d) using a heavy roof
30. 30.🏚️ 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 160 cm tall on a 40 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
31. 31.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
33. 33.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) fitting rubber base pads
35. 35.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) adding cross bracing (d) using a light roof
36. 36.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) building tall and narrow (d) fitting rubber base pads
38. 38.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) adding cross bracing (d) building tall and narrow
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 80 cm tall on a 40 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
40. 40.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) having a wide base (d) using a heavy roof

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