Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 522 · 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 raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) fitting rubber base pads (d) adding steel to concrete
5. 5.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
6. 6.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) using a heavy roof
8. 8.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using flexible joints (d) leaving out steel bars
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
10. 10.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) using flexible joints (d) raising heavy tanks high
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) adding cross bracing (d) fitting rubber base pads
12. 12.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) adding steel to concrete (d) using a heavy roof
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) adding cross bracing
14. 14.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
15. 15.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ 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 80 cm tall on a 40 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 A (c) tower B
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
18. 18.🏚️ Does having a wide base 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) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) adding cross bracing
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) keeping a simple shape (d) making brittle joints
23. 23.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) building tall and narrow (d) having a wide base
25. 25.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ 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 200 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
27. 27.🏚️ 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 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) adding steel to concrete (d) using flexible joints
29. 29.🏚️ 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 30 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
32. 32.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) leaving out steel bars (d) stacking loose bricks
33. 33.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
34. 34.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
35. 35.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) using flexible joints (d) using a heavy roof
36. 36.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ 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 easiest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) having a wide base (d) using flexible joints
40. 40.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) building tall and narrow (d) raising heavy tanks high

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