Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 911 · 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) using flexible joints (b) raising heavy tanks high (c) stacking loose bricks (d) building tall and narrow
2. 2.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 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 A (c) tower C
4. 4.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a light roof (d) using a heavy roof
5. 5.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) having a wide base
6. 6.🏚️ 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 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.🏚️ Does using a heavy roof 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 60 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) using a light roof (d) making brittle joints
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ 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
13. 13.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
14. 14.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) making brittle joints (d) using a heavy roof
15. 15.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) having a wide base
16. 16.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) stacking loose bricks (d) building tall and narrow
17. 17.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
18. 18.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) building tall and narrow (c) using a heavy roof (d) leaving out steel bars
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) making brittle joints (d) fitting rubber base pads
20. 20.🏚️ 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 60 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
21. 21.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ 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 20 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using a light roof (c) using flexible joints (d) keeping a simple shape
26. 26.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) stacking loose bricks (d) adding steel to concrete
27. 27.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) adding cross bracing (d) leaving out steel bars
30. 30.🏚️ 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 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) leaving out steel bars (d) fitting rubber base pads
32. 32.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
33. 33.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
35. 35.🏚️ 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 C (c) tower A
36. 36.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
37. 37.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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