Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 487 · 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) making brittle joints (b) leaving out steel bars (c) adding cross bracing (d) building tall and narrow
2. 2.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does having a wide base 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 40 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
5. 5.🏚️ 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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
7. 7.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
8. 8.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
9. 9.🏚️ Does using a light roof 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 40 cm tall on a 20 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) leaving out steel bars (d) stacking loose bricks
13. 13.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) fitting rubber base pads (d) adding cross bracing
14. 14.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
16. 16.🏚️ 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 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
17. 17.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using a heavy roof (d) keeping a simple shape
18. 18.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) building tall and narrow (d) adding cross bracing
19. 19.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
21. 21.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) using flexible joints (d) building tall and narrow
23. 23.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) having a wide base (d) raising heavy tanks high
25. 25.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
26. 26.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) leaving out steel bars (d) using a heavy roof
27. 27.🏚️ 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 80 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
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 120 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 B (b) tower A (c) tower C
31. 31.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 120 cm tall on a 20 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
33. 33.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.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) stacking loose bricks
37. 37.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) leaving out steel bars (d) using a heavy roof
40. 40.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) adding cross bracing (d) having a wide base

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