Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 551 · 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 of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) using flexible joints (d) having a wide base
2. 2.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) using a light roof (d) building tall and narrow
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 50 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 C (b) tower A (c) tower B
4. 4.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
5. 5.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
6. 6.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
8. 8.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
12. 12.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using flexible joints
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) stacking loose bricks (d) using a heavy roof
14. 14.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) building tall and narrow (d) leaving out steel bars
15. 15.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ 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 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
20. 20.🏚️ Does using a heavy roof 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 30 cm tall on a 10 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
23. 23.🏚️ 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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.🏚️ 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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) stacking loose bricks (d) leaving out steel bars
26. 26.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) adding cross bracing (d) building tall and narrow
27. 27.🏚️ 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 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🏚️ Does stacking loose bricks 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 safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) using a heavy roof (d) making brittle joints
30. 30.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) adding cross bracing (d) building tall and narrow
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 80 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
34. 34.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) stacking loose bricks (d) adding cross bracing
36. 36.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) building tall and narrow (d) raising heavy tanks high
37. 37.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
38. 38.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) leaving out steel bars (d) using flexible joints
39. 39.🏚️ 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 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A

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