Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 478 · 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.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
2. 2.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
3. 3.🏚️ 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 30 cm tall on a 10 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 B (c) tower C
4. 4.🏚️ 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 210 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 A (b) tower C (c) tower B
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
6. 6.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
9. 9.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) building tall and narrow (d) having a wide base
12. 12.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) adding cross bracing
13. 13.🏚️ 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 40 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 B (b) tower A (c) tower C
14. 14.🏚️ 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 20 cm tall on a 10 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 A (c) tower C
15. 15.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) on a thin pole (d) hanging outside
16. 16.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) stacking loose bricks (d) making brittle joints
17. 17.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) fitting rubber base pads (d) making brittle joints
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
19. 19.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ 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
21. 21.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
22. 22.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) having a wide base (d) making brittle joints
23. 23.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
25. 25.🏚️ Does adding cross bracing 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 120 cm tall on a 20 cm wide base, tower B is 60 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 B (b) tower A (c) tower C
27. 27.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
29. 29.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) using a light roof (d) raising heavy tanks high
30. 30.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) using flexible joints
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 20 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 C (c) tower B
32. 32.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) using a heavy roof (d) adding steel to concrete
33. 33.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) fitting rubber base pads
34. 34.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) using a heavy roof (d) leaving out steel bars
35. 35.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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 30 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
37. 37.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) using flexible joints (d) using a heavy roof
38. 38.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) stacking loose bricks (d) leaving out steel bars
39. 39.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) leaving out steel bars (d) using a light roof
40. 40.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) making brittle joints (d) using flexible joints

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