Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 236 · 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 safer in earthquakes? (a) using a light roof (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
2. 2.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) stacking loose bricks (d) raising heavy tanks high
3. 3.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ 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 280 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 A (b) tower C (c) tower B
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) fitting rubber base pads (d) adding cross bracing
8. 8.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) using a heavy roof (d) leaving out steel bars
10. 10.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) using flexible joints (d) raising heavy tanks high
11. 11.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
12. 12.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
14. 14.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
15. 15.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) leaving out steel bars (d) building tall and narrow
17. 17.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
18. 18.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
19. 19.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
20. 20.🏚️ 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 120 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) building tall and narrow (d) stacking loose bricks
24. 24.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
25. 25.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) having a wide base (d) using flexible joints
30. 30.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
32. 32.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) making brittle joints (d) adding steel to concrete
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 20 cm tall on a 10 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 A (c) tower B
36. 36.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) leaving out steel bars (d) keeping a simple shape
37. 37.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ 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 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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