Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 568 · 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 is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) having a wide base (d) using a light roof
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
4. 4.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) keeping a simple shape (d) adding cross bracing
5. 5.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) having a wide base (d) raising heavy tanks high
6. 6.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
7. 7.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) building tall and narrow (d) using flexible joints
8. 8.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using a light roof (d) fitting rubber base pads
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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 120 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) using flexible joints (d) stacking loose bricks
13. 13.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
14. 14.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
15. 15.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
16. 16.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
17. 17.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ 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 60 cm tall on a 30 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 B (c) tower C
19. 19.🏚️ 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 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
20. 20.🏚️ 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 210 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 B (c) tower A
21. 21.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) raising heavy tanks high (d) fitting rubber base pads
24. 24.🏚️ 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 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
26. 26.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
28. 28.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) using a light roof (d) using flexible joints
30. 30.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ 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 80 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
36. 36.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) using a heavy roof (d) keeping a simple shape
38. 38.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using a light roof (d) raising heavy tanks high
40. 40.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False

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