Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 412 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
2. 2.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
3. 3.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) building tall and narrow
5. 5.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) using a heavy roof (d) having a wide base
6. 6.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
7. 7.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 90 cm tall on a 30 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
9. 9.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
10. 10.🔍 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
11. 11.🏚️ 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 20 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
12. 12.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
13. 13.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
14. 14.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using a light roof (d) making brittle joints
15. 15.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) fitting rubber base pads (d) using a light roof
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
17. 17.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
18. 18.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
19. 19.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) stacking loose bricks (d) adding cross bracing
20. 20.🏚️ 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
21. 21.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) having a wide base
22. 22.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) using a light roof
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) using a heavy roof (d) making brittle joints
24. 24.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) using a light roof (d) keeping a simple shape
26. 26.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) using flexible joints (d) adding cross bracing
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) building tall and narrow (d) stacking loose bricks
31. 31.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) using flexible joints (d) adding cross bracing
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 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 C (b) tower A (c) tower B
35. 35.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
36. 36.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) making brittle joints (d) using flexible joints
37. 37.🏚️ 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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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