Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 834 · 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 of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) stacking loose bricks (d) fitting rubber base pads
2. 2.🏚️ 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 160 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 A (b) tower C (c) tower B
3. 3.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) using flexible joints (d) raising heavy tanks high
4. 4.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) raising heavy tanks high (d) fitting rubber base pads
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) adding cross bracing (d) using a heavy roof
8. 8.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) raising heavy tanks high (d) building tall and narrow
9. 9.🏚️ 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 60 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) having a wide base
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
12. 12.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
13. 13.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
14. 14.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) making brittle joints (d) leaving out steel bars
16. 16.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 80 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
18. 18.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ 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 140 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
21. 21.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) stacking loose bricks (d) raising heavy tanks high
22. 22.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) making brittle joints (d) adding cross bracing
23. 23.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) using flexible joints (d) using a heavy roof
25. 25.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) using a heavy roof (d) keeping a simple shape
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
28. 28.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
29. 29.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) using a light roof
30. 30.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
31. 31.🏚️ 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 60 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🏚️ 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 280 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) adding cross bracing (d) making brittle joints
34. 34.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) fitting rubber base pads (d) adding cross bracing
35. 35.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
36. 36.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
39. 39.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) building tall and narrow (d) stacking loose bricks
40. 40.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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