Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 36 · 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.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) using flexible joints (d) adding cross bracing
2. 2.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
3. 3.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) using a light roof (d) fitting rubber base pads
4. 4.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) building tall and narrow (d) using a light roof
5. 5.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) building tall and narrow (d) making brittle joints
7. 7.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 70 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: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
10. 10.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) building tall and narrow (d) having a wide base
11. 11.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
13. 13.🏚️ 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 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
17. 17.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) leaving out steel bars (d) having a wide base
18. 18.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) adding steel to concrete (d) making brittle joints
19. 19.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) using flexible joints (d) using a heavy roof
20. 20.🏚️ 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 20 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) fitting rubber base pads
22. 22.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) adding steel to concrete (d) fitting rubber base pads
23. 23.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
25. 25.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) keeping a simple shape (d) having a wide base
27. 27.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) stacking loose bricks
29. 29.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
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 is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) fitting rubber base pads (d) stacking loose bricks
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
36. 36.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) keeping a simple shape (d) making brittle joints
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) making brittle joints (d) fitting rubber base pads
38. 38.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole

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