Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 441 · 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.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
3. 3.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Does having a wide base 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) stacking loose bricks (b) using a light roof (c) using flexible joints (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) using a light roof (d) fitting rubber base pads
7. 7.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) using a light roof (d) adding cross bracing
8. 8.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) raising heavy tanks high (c) using a heavy roof (d) building tall and narrow
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
13. 13.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) building tall and narrow
14. 14.🏚️ 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 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 C (b) tower A (c) tower B
15. 15.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
17. 17.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) stacking loose bricks (d) using a light roof
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) making brittle joints
19. 19.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) using flexible joints (d) leaving out steel bars
20. 20.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ 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 60 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
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 40 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) using a heavy roof (d) stacking loose bricks
25. 25.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) adding steel to concrete (d) using a light roof
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.🏚️ 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
29. 29.🏚️ 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 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
30. 30.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) making brittle joints (d) leaving out steel bars
31. 31.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
32. 32.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
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 140 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 C (c) tower A
34. 34.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
35. 35.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) raising heavy tanks high
36. 36.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
37. 37.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) having a wide base (d) keeping a simple shape
38. 38.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) adding steel to concrete (d) building tall and narrow
39. 39.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ 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 30 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A

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