Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 356 · 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.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) using flexible joints (d) building tall and narrow
3. 3.🏚️ 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 80 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
6. 6.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) using a heavy roof (d) raising heavy tanks high
7. 7.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) stacking loose bricks (d) using a heavy roof
8. 8.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) using flexible joints (d) adding steel to concrete
11. 11.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) using a heavy roof (d) having a wide base
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.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
15. 15.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
16. 16.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
19. 19.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) using a light roof (d) using a heavy roof
23. 23.🏚️ 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 30 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 B (b) tower A (c) tower C
24. 24.🏚️ 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 210 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
26. 26.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) leaving out steel bars (d) stacking loose bricks
27. 27.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) keeping a simple shape (d) making brittle joints
28. 28.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) raising heavy tanks high (d) using flexible joints
29. 29.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) leaving out steel bars (c) stacking loose bricks (d) using a heavy roof
30. 30.🏚️ 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
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) adding cross bracing (d) using a heavy roof
34. 34.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
35. 35.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
36. 36.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
37. 37.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) stacking loose bricks (d) using flexible joints
38. 38.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ 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 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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