Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 57 · 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) having a wide base (b) adding steel to concrete (c) keeping a simple shape (d) making brittle joints
2. 2.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) adding steel to concrete (d) making brittle joints
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
4. 4.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
5. 5.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) using a heavy roof (d) stacking loose bricks
6. 6.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
7. 7.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) adding cross bracing
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Does building tall and narrow 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 80 cm tall on a 20 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ 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 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) using a heavy roof (d) fitting rubber base pads
14. 14.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
16. 16.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) making brittle joints (d) using flexible joints
17. 17.🏚️ 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 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) using a heavy roof (d) using flexible joints
19. 19.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) keeping a simple shape
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
21. 21.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
22. 22.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
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 90 cm tall on a 30 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
24. 24.🏚️ 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
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using a light roof (d) building tall and narrow
26. 26.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) making brittle joints
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) raising heavy tanks high (d) stacking loose bricks
29. 29.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) having a wide base (d) using flexible joints
31. 31.🏚️ 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 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) using a heavy roof (d) stacking loose bricks
34. 34.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) adding steel to concrete (d) using a heavy roof
35. 35.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) leaving out steel bars (d) using a heavy roof
36. 36.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) adding steel to concrete
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) raising heavy tanks high (d) using a light roof
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) building tall and narrow (d) stacking loose bricks

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