Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 330 · 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: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using a light roof (d) stacking loose bricks
3. 3.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) raising heavy tanks high (d) leaving out steel bars
4. 4.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) leaving out steel bars (d) adding cross bracing
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
7. 7.🏚️ Does using flexible joints 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) fitting rubber base pads (b) raising heavy tanks high (c) using flexible joints (d) adding steel to concrete
9. 9.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) adding steel to concrete (d) using a light roof
10. 10.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) raising heavy tanks high (d) using flexible joints
12. 12.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
14. 14.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) keeping a simple shape (d) using a heavy roof
16. 16.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) using a light roof
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
18. 18.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) having a wide base (d) using a heavy roof
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) leaving out steel bars (c) having a wide base (d) using a light roof
22. 22.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) building tall and narrow (c) adding cross bracing (d) using a light roof
23. 23.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) building tall and narrow (d) having a wide base
26. 26.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
27. 27.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
28. 28.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
30. 30.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
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.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) using a light roof (d) making brittle joints
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ 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 40 cm tall on a 40 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 A (c) tower C
35. 35.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using a light roof (c) using flexible joints (d) keeping a simple shape
36. 36.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
38. 38.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🏚️ 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 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True

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