Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 936 · 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) stacking loose bricks (b) raising heavy tanks high (c) making brittle joints (d) adding steel to concrete
2. 2.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
3. 3.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
4. 4.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) stacking loose bricks (d) leaving out steel bars
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 40 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
6. 6.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) having a wide base (d) building tall and narrow
8. 8.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) making brittle joints (d) fitting rubber base pads
9. 9.🏚️ 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 240 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 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 A (b) tower B (c) tower C
14. 14.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) fitting rubber base pads (d) stacking loose bricks
15. 15.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
16. 16.🏚️ 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 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
17. 17.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) leaving out steel bars (d) using a heavy roof
24. 24.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) leaving out steel bars (d) adding cross bracing
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🏚️ 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 80 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 C (b) tower A (c) tower B
27. 27.🏚️ 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 60 cm tall on a 20 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
28. 28.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
29. 29.🏚️ 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
30. 30.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) using flexible joints (d) adding cross bracing
32. 32.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high
33. 33.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) using flexible joints (d) using a heavy roof
34. 34.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) adding steel to concrete (d) building tall and narrow
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False

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