Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 107 · 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) adding cross bracing (b) using flexible joints (c) having a wide base (d) building tall and narrow
2. 2.🏚️ 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 90 cm tall on a 30 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
3. 3.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using flexible joints (d) raising heavy tanks high
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
7. 7.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ 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 60 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
10. 10.🏚️ 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 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) having a wide base (c) using flexible joints (d) adding steel to concrete
12. 12.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) adding steel to concrete
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) adding cross bracing
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ 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 40 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 B (b) tower A (c) tower C
17. 17.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
18. 18.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
21. 21.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
23. 23.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) keeping a simple shape (d) fitting rubber base pads
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) having a wide base (d) building tall and narrow
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) fitting rubber base pads (d) adding steel to concrete
28. 28.🏚️ 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 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
30. 30.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
31. 31.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) adding steel to concrete
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 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
33. 33.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🏚️ 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 120 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
39. 39.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) raising heavy tanks high

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