Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 972 · 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 cross bracing (c) keeping a simple shape (d) fitting rubber base pads
2. 2.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
4. 4.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
6. 6.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
10. 10.🏚️ 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 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ 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 120 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 C (b) tower A (c) tower B
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) stacking loose bricks (d) making brittle joints
17. 17.🏚️ Does stacking loose bricks 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 safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) making brittle joints
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
21. 21.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 40 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 A (b) tower C (c) tower B
27. 27.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
29. 29.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
30. 30.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) fitting rubber base pads (d) stacking loose bricks
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ 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 20 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) building tall and narrow (d) leaving out steel bars
35. 35.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) having a wide base (d) keeping a simple shape
36. 36.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) having a wide base (d) stacking loose bricks
37. 37.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete
38. 38.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) fitting rubber base pads (d) using a light roof

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