Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 188 · 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 safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
2. 2.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
5. 5.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
6. 6.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
8. 8.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) having a wide base (d) adding cross bracing
10. 10.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
13. 13.🏚️ 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 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) making brittle joints (c) keeping a simple shape (d) fitting rubber base pads
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 140 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.🏚️ 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 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
19. 19.🏚️ 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 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
20. 20.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) keeping a simple shape (d) adding cross bracing
23. 23.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) leaving out steel bars (d) having a wide base
24. 24.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) having a wide base (d) stacking loose bricks
25. 25.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 90 cm tall on a 30 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
28. 28.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) keeping a simple shape (d) using a light roof
29. 29.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) using a light roof
30. 30.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
31. 31.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ 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 50 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
33. 33.🏚️ 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 160 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) making brittle joints (d) using a heavy roof
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 30 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.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 70 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 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
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 30 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🏚️ 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 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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