Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 492 · 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.🏚️ 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 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) stacking loose bricks
3. 3.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
5. 5.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
7. 7.🏚️ 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 60 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 B (b) tower A (c) tower C
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 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (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.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) making brittle joints (d) fitting rubber base pads
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) using flexible joints
13. 13.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) having a wide base (d) building tall and narrow
14. 14.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ 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 30 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow
18. 18.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) adding cross bracing (d) making brittle joints
19. 19.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
20. 20.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
23. 23.🏚️ 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 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) leaving out steel bars (d) building tall and narrow
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) stacking loose bricks (d) making brittle joints
26. 26.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ 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 120 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 C (b) tower A (c) tower B
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) fitting rubber base pads (d) using flexible joints
32. 32.🏚️ 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 20 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
35. 35.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) fitting rubber base pads (b) having a wide base (c) using a light roof (d) using a heavy roof
37. 37.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) fitting rubber base pads (d) adding cross bracing
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False

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