Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 625 · 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.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.🏚️ 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 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
6. 6.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
9. 9.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) using a light roof (d) having a wide base
10. 10.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) using a light roof (d) building tall and narrow
11. 11.🏚️ 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 200 cm tall on a 40 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 B (c) tower C
12. 12.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) adding cross bracing (d) keeping a simple shape
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
14. 14.🏚️ 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 10 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 B (b) tower C (c) tower A
15. 15.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
16. 16.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) stacking loose bricks (d) leaving out steel bars
17. 17.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
18. 18.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) having a wide base (d) using flexible joints
19. 19.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) using a heavy roof (d) leaving out steel bars
20. 20.🏚️ 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 60 cm tall on a 10 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
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 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 hardest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
23. 23.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
24. 24.🏚️ 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 120 cm tall on a 40 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 A (c) tower B
25. 25.🏚️ 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 120 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 B (b) tower A (c) tower C
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) fitting rubber base pads
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) making brittle joints (d) using flexible joints
28. 28.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) using a light roof
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 100 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ 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 100 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 C (b) tower A (c) tower B
32. 32.🏚️ 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 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
33. 33.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) using flexible joints (d) using a light roof
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) using a light roof (d) using flexible joints
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) having a wide base (d) using a light roof
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 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 C (c) tower B
39. 39.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using flexible joints (d) building tall and narrow
40. 40.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) making brittle joints (d) adding cross bracing

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