Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 658 · 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) having a wide base (b) raising heavy tanks high (c) adding steel to concrete (d) using a light roof
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) leaving out steel bars (d) stacking loose bricks
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 160 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 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) adding cross bracing (d) using flexible joints
6. 6.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does using a light roof 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) stacking loose bricks (b) adding cross bracing (c) building tall and narrow (d) leaving out steel bars
13. 13.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
14. 14.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
15. 15.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
16. 16.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) stacking loose bricks (d) adding cross bracing
18. 18.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
21. 21.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) making brittle joints (d) adding steel to concrete
22. 22.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) building tall and narrow (d) having a wide base
23. 23.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) stacking loose bricks (d) leaving out steel bars
26. 26.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) making brittle joints (d) adding cross bracing
27. 27.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) making brittle joints (d) stacking loose bricks
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.🏚️ 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 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
31. 31.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) keeping a simple shape
32. 32.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding cross bracing (d) raising heavy tanks high
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) having a wide base (d) using a light roof
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) adding steel to concrete (d) using flexible joints
38. 38.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) leaving out steel bars (d) raising heavy tanks high
39. 39.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 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

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