Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 671 · 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 steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
3. 3.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) having a wide base (d) fitting rubber base pads
4. 4.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
5. 5.🏚️ 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 40 cm tall on a 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) using flexible joints (d) using a light roof
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) building tall and narrow (d) leaving out steel bars
11. 11.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) fitting rubber base pads (d) using flexible joints
12. 12.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) raising heavy tanks high (d) having a wide base
14. 14.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) leaving out steel bars (d) using a light roof
15. 15.🏚️ 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 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 C (b) tower A (c) tower B
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 120 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
19. 19.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
21. 21.🏚️ 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 210 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) using a light roof (c) making brittle joints (d) building tall and narrow
23. 23.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 50 cm tall on a 10 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 B (c) tower C
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ 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 120 cm tall on a 20 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
27. 27.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) using flexible joints (d) adding cross bracing
28. 28.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a heavy roof (d) keeping a simple shape
29. 29.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
32. 32.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
34. 34.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
36. 36.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using flexible joints (d) making brittle joints
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 100 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 A (b) tower C (c) tower B
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) building tall and narrow (d) leaving out steel bars

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