Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 615 · 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: making brittle joints makes a building safer in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) adding cross bracing (d) using a heavy roof
3. 3.🏚️ 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 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 B (b) tower C (c) tower A
4. 4.🏚️ 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 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
5. 5.True or false: having a wide base 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.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) using a heavy roof (d) building tall and narrow
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) using a light roof
10. 10.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
11. 11.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
12. 12.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) building tall and narrow (d) adding cross bracing
14. 14.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
15. 15.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using flexible joints (d) adding steel to concrete
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) making brittle joints (c) adding steel to concrete (d) adding cross bracing
17. 17.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) keeping a simple shape (d) fitting rubber base pads
18. 18.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) using flexible joints (d) leaving out steel bars
21. 21.🏚️ 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 180 cm tall on a 30 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
22. 22.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) leaving out steel bars (d) using a heavy roof
23. 23.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) using a heavy roof (d) keeping a simple shape
24. 24.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) using flexible joints (d) having a wide base
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
26. 26.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
27. 27.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding steel to concrete (d) using a heavy roof
29. 29.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) adding cross bracing (d) raising heavy tanks high
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) having a wide base (d) leaving out steel bars
34. 34.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
35. 35.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using flexible joints (c) raising heavy tanks high (d) having a wide base
36. 36.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) stacking loose bricks (d) having a wide base
38. 38.🏚️ 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 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 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 B (c) tower A

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