Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 976 · 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.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
3. 3.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
6. 6.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) stacking loose bricks (d) using flexible joints
7. 7.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) leaving out steel bars (c) raising heavy tanks high (d) stacking loose bricks
8. 8.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
9. 9.🏚️ 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 60 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) adding steel to concrete (d) adding cross bracing
12. 12.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) adding steel to concrete
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
15. 15.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
17. 17.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) leaving out steel bars
19. 19.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) fitting rubber base pads
20. 20.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) stacking loose bricks (d) making brittle joints
21. 21.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) leaving out steel bars (d) adding cross bracing
24. 24.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) using flexible joints (d) adding cross bracing
26. 26.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) using a heavy roof (d) keeping a simple shape
28. 28.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) stacking loose bricks
30. 30.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ 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 120 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
34. 34.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ Does adding cross bracing 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 140 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 120 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ 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 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🔍 Which is the odd one out? (a) making brittle joints (b) adding cross bracing (c) adding steel to concrete (d) using a light roof

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