Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 363 · 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 raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) keeping a simple shape (d) making brittle joints
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
7. 7.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) raising heavy tanks high
9. 9.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) adding cross bracing (d) leaving out steel bars
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) raising heavy tanks high (d) using a heavy roof
11. 11.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) keeping a simple shape (d) adding cross bracing
12. 12.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
13. 13.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
14. 14.🏚️ 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 80 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
15. 15.🏚️ 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 150 cm tall on a 30 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 C (c) tower B
16. 16.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) adding steel to concrete (d) raising heavy tanks high
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) using flexible joints (d) fitting rubber base pads
20. 20.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) leaving out steel bars (d) keeping a simple shape
21. 21.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) adding steel to concrete
22. 22.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ 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 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) fitting rubber base pads (d) having a wide base
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
26. 26.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) adding steel to concrete (d) using flexible joints
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) using a heavy roof (d) adding steel to concrete
28. 28.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) using flexible joints (d) having a wide base
29. 29.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) using a light roof (d) adding steel to concrete
31. 31.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) using a light roof
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) using flexible joints
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🏚️ Does adding cross bracing 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) adding steel to concrete (b) fitting rubber base pads (c) leaving out steel bars (d) using flexible joints
37. 37.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
38. 38.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ 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 120 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 A (b) tower B (c) tower C
40. 40.🏚️ 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 240 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

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