Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 440 · 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 heavy roof (b) leaving out steel bars (c) having a wide base (d) making brittle joints
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) using flexible joints (d) making brittle joints
3. 3.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
4. 4.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
5. 5.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
7. 7.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
8. 8.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) fitting rubber base pads (d) having a wide base
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) making brittle joints (d) having a wide base
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.🏚️ 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 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
16. 16.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) leaving out steel bars (d) adding cross bracing
18. 18.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) having a wide base (d) keeping a simple shape
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) adding cross bracing (d) leaving out steel bars
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
23. 23.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) making brittle joints (d) stacking loose bricks
24. 24.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
25. 25.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using a heavy roof (d) keeping a simple shape
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) raising heavy tanks high (d) leaving out steel bars
27. 27.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) making brittle joints (d) keeping a simple shape
28. 28.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) using a heavy roof (d) having a wide base
29. 29.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ 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 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) leaving out steel bars (d) stacking loose bricks
36. 36.🏚️ 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 120 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
38. 38.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 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 A (c) tower C
40. 40.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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