Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 628 · 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: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) adding cross bracing (d) leaving out steel bars
5. 5.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) making brittle joints (d) using flexible joints
7. 7.🏚️ 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 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
8. 8.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) fitting rubber base pads (d) building tall and narrow
10. 10.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) leaving out steel bars (d) keeping a simple shape
11. 11.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) making brittle joints
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) raising heavy tanks high (d) making brittle joints
13. 13.🏚️ 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 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
16. 16.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
17. 17.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is harder to tip over (d) it is taller
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
21. 21.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) fitting rubber base pads (d) having a wide base
23. 23.🏚️ Does making brittle joints 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) using a light roof (c) keeping a simple shape (d) leaving out steel bars
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ 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 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.🏚️ 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 10 cm tall on a 10 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
28. 28.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
30. 30.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
31. 31.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
32. 32.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🏚️ 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 70 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
36. 36.🏚️ 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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) stacking loose bricks (d) having a wide base
39. 39.🏚️ 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 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
40. 40.🏚️ 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 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A

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