Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 165 · 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) fitting rubber base pads (b) adding cross bracing (c) using flexible joints (d) building tall and narrow
2. 2.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
3. 3.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) leaving out steel bars (d) making brittle joints
5. 5.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) adding steel to concrete (d) making brittle joints
6. 6.🔍 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
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
8. 8.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
9. 9.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ 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 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 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 safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) raising heavy tanks high (d) having a wide base
12. 12.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) having a wide base
13. 13.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) keeping a simple shape (d) building tall and narrow
15. 15.🏚️ 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
16. 16.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
17. 17.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) adding cross bracing (d) having a wide base
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
19. 19.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) having a wide base (d) stacking loose bricks
20. 20.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) stacking loose bricks (d) fitting rubber base pads
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 160 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 B (b) tower A (c) tower C
22. 22.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 120 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
24. 24.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) leaving out steel bars (d) raising heavy tanks high
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) adding steel to concrete (d) having a wide base
27. 27.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) raising heavy tanks high
29. 29.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) building tall and narrow (d) using a heavy roof
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 100 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 B (b) tower C (c) tower A
31. 31.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
32. 32.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) using a heavy roof (d) building tall and narrow
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) adding steel to concrete (d) raising heavy tanks high
36. 36.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ 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 40 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
39. 39.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) keeping a simple shape (d) leaving out steel bars
40. 40.🏚️ 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 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C

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