Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 712 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
2. 2.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) using a light roof (d) using a heavy roof
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) using flexible joints
4. 4.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) using flexible joints (d) fitting rubber base pads
6. 6.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
7. 7.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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 240 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) using flexible joints (d) using a heavy roof
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) building tall and narrow (d) having a wide base
13. 13.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 40 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 A (c) tower C
15. 15.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) using a heavy roof
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) stacking loose bricks (d) adding cross bracing
17. 17.🏚️ 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
18. 18.🏚️ 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 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ 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 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🏚️ Does using flexible joints 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) stacking loose bricks (b) leaving out steel bars (c) keeping a simple shape (d) making brittle joints
24. 24.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) using a light roof
25. 25.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
26. 26.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ 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 210 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) raising heavy tanks high (d) having a wide base
29. 29.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using flexible joints (c) raising heavy tanks high (d) using a heavy roof
30. 30.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
31. 31.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
34. 34.🏚️ 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 70 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) fitting rubber base pads (d) raising heavy tanks high
36. 36.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 50 cm tall on a 10 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
40. 40.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over

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