Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 56 · 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 using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ 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 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on a thin pole (d) on the very top
6. 6.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they look nice (d) they bend, not break
8. 8.🏚️ 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 50 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 B (b) tower C (c) tower A
9. 9.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
10. 10.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
13. 13.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) using a heavy roof (d) using flexible joints
17. 17.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high
18. 18.🏚️ 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 160 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🏚️ 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 100 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 A (c) tower B
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 20 cm tall on a 20 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
21. 21.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) stacking loose bricks (d) using a light roof
22. 22.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) adding steel to concrete (d) using flexible joints
24. 24.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) building tall and narrow (d) using flexible joints
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) adding steel to concrete
28. 28.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 20 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) adding steel to concrete (d) raising heavy tanks high
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) using flexible joints (d) using a light roof
35. 35.🏚️ 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 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) using a light roof (d) leaving out steel bars
38. 38.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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