Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 796 · 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: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
2. 2.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) fitting rubber base pads (d) stacking loose bricks
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) stacking loose bricks (d) leaving out steel bars
4. 4.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
6. 6.🔍 Which is the odd one out? (a) leaving out steel bars (b) fitting rubber base pads (c) using a light roof (d) having a wide base
7. 7.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) keeping a simple shape (d) adding cross bracing
8. 8.🏚️ 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 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
9. 9.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
10. 10.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) keeping a simple shape (d) having a wide base
13. 13.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) using flexible joints (d) leaving out steel bars
15. 15.🏚️ 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 150 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
17. 17.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) leaving out steel bars (c) fitting rubber base pads (d) using a light roof
19. 19.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
21. 21.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
22. 22.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) raising heavy tanks high (d) adding steel to concrete
24. 24.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
25. 25.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
26. 26.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) making brittle joints (d) having a wide base
28. 28.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) raising heavy tanks high (d) adding cross bracing
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) keeping a simple shape (d) using a light roof
30. 30.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) using flexible joints (d) making brittle joints
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
33. 33.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) building tall and narrow (d) keeping a simple shape
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 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 hardest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) leaving out steel bars (d) using a heavy roof
37. 37.🏚️ 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 200 cm tall on a 40 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 A (c) tower C
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) keeping a simple shape (d) using flexible joints
39. 39.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) adding steel to concrete (d) using a heavy roof
40. 40.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) low down (d) on the very top

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