Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 512 · 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) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) adding cross bracing
2. 2.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) using a light roof (d) leaving out steel bars
3. 3.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) adding steel to concrete (d) raising heavy tanks high
5. 5.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
7. 7.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ 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 20 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
9. 9.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) adding steel to concrete (d) having a wide base
10. 10.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
11. 11.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) stacking loose bricks (d) using a light roof
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) using flexible joints
13. 13.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) adding steel to concrete (d) using flexible joints
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) leaving out steel bars (d) making brittle joints
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) keeping a simple shape (d) fitting rubber base pads
16. 16.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
17. 17.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
18. 18.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
20. 20.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
22. 22.🏚️ 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 40 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 B (b) tower A (c) tower C
23. 23.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
26. 26.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) keeping a simple shape (d) leaving out steel bars
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
30. 30.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
32. 32.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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 120 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 A (b) tower B (c) tower C
34. 34.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) having a wide base (d) using flexible joints
36. 36.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
37. 37.🏚️ 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 90 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
38. 38.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 10 cm tall on a 10 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 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A

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