Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 8 · 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 fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ 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 210 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 A (b) tower B (c) tower C
3. 3.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) using a heavy roof (d) making brittle joints
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) leaving out steel bars (d) using a light roof
5. 5.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
6. 6.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) stacking loose bricks (d) using a light roof
7. 7.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) adding cross bracing
8. 8.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) making brittle joints
9. 9.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) building tall and narrow (d) keeping a simple shape
10. 10.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
12. 12.🏚️ 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 20 cm tall on a 20 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 B (c) tower C
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
14. 14.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
15. 15.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) leaving out steel bars (d) fitting rubber base pads
17. 17.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) using a light roof (d) using a heavy roof
18. 18.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using flexible joints (d) using a heavy roof
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🏚️ 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 100 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
24. 24.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) adding cross bracing (b) making brittle joints (c) having a wide base (d) keeping a simple shape
26. 26.🏚️ 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 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 A (b) tower B (c) tower C
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 150 cm tall on a 30 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
28. 28.🏚️ 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 210 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.🏚️ 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 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 C (c) tower B
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.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ 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 90 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.🏚️ 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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) building tall and narrow (d) raising heavy tanks high
37. 37.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
40. 40.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow

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