Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 904 · 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) using a heavy roof (c) adding cross bracing (d) leaving out steel bars
2. 2.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
3. 3.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
4. 4.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 100 cm tall on a 20 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 C (c) tower A
6. 6.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
7. 7.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) adding cross bracing
9. 9.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) fitting rubber base pads (d) adding cross bracing
10. 10.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) adding steel to concrete (d) keeping a simple shape
12. 12.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
14. 14.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) building tall and narrow (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) leaving out steel bars (d) building tall and narrow
16. 16.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) using a light roof (d) fitting rubber base pads
18. 18.🔍 Which is the odd one out? (a) stacking loose bricks (b) fitting rubber base pads (c) adding cross bracing (d) having a wide base
19. 19.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
20. 20.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) raising heavy tanks high (d) using a light roof
21. 21.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) having a wide base (d) building tall and narrow
22. 22.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 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 A (b) tower B (c) tower C
24. 24.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) stacking loose bricks (c) having a wide base (d) adding cross bracing
26. 26.🏚️ 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 10 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) making brittle joints (d) adding cross bracing
29. 29.🏚️ 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 80 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ 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 140 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 A (b) tower B (c) tower C
35. 35.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) leaving out steel bars (d) making brittle joints
37. 37.🏚️ 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 10 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
38. 38.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) making brittle joints (d) adding steel to concrete
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True

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