Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 269 · 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) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) using flexible joints
2. 2.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) adding cross bracing (d) leaving out steel bars
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) fitting rubber base pads
5. 5.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) making brittle joints (d) using flexible joints
7. 7.🏚️ 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
8. 8.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) fitting rubber base pads (d) using flexible joints
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
11. 11.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
12. 12.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
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.🏚️ 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 50 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 B (c) tower A
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) raising heavy tanks high (d) leaving out steel bars
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) using flexible joints (d) adding cross bracing
19. 19.🏚️ 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 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
21. 21.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) using flexible joints (d) making brittle joints
23. 23.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
24. 24.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) using a light roof (b) raising heavy tanks high (c) stacking loose bricks (d) using a heavy roof
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) using a heavy roof (d) using a light roof
27. 27.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) using a light roof (d) raising heavy tanks high
29. 29.🏚️ Does making brittle joints 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 120 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
33. 33.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using a light roof (d) using a heavy roof
34. 34.🏚️ 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 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ 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 120 cm tall on a 30 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
39. 39.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing

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