Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 519 · 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.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
3. 3.🏚️ 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 10 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
5. 5.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) adding steel to concrete
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) keeping a simple shape (d) adding steel to concrete
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) leaving out steel bars (d) making brittle joints
11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
16. 16.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
18. 18.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) using flexible joints (d) stacking loose bricks
19. 19.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) stacking loose bricks (d) having a wide base
21. 21.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) using a light roof (d) having a wide base
23. 23.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) keeping a simple shape
25. 25.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) building tall and narrow
26. 26.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
27. 27.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) having a wide base (d) adding steel to concrete
28. 28.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
29. 29.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) building tall and narrow (d) using a light roof
33. 33.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) stacking loose bricks
34. 34.🔍 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
35. 35.🏚️ 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 60 cm tall on a 30 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
36. 36.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) making brittle joints (d) stacking loose bricks
37. 37.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
39. 39.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) making brittle joints (d) leaving out steel bars
40. 40.Which of these makes a building safer in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) stacking loose bricks (d) leaving out steel bars

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