Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 381 · 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.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ 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
3. 3.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) using flexible joints
4. 4.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) using flexible joints (d) adding cross bracing
5. 5.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
6. 6.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
7. 7.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) making brittle joints (d) keeping a simple shape
8. 8.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) adding cross bracing (d) using a heavy roof
9. 9.🏚️ 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 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
11. 11.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) having a wide base (d) keeping a simple shape
12. 12.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) fitting rubber base pads
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
17. 17.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
18. 18.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) fitting rubber base pads (d) building tall and narrow
19. 19.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) using a heavy roof (d) having a wide base
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
21. 21.🏚️ 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 30 cm tall on a 10 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
22. 22.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
24. 24.🏚️ 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 50 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) stacking loose bricks
26. 26.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) building tall and narrow (d) stacking loose bricks
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) having a wide base (d) using a heavy roof
29. 29.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ 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 150 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) making brittle joints (d) raising heavy tanks high
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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
34. 34.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) using a heavy roof (d) stacking loose bricks
36. 36.🏚️ 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 30 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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