Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 187 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
2. 2.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) adding steel to concrete (d) leaving out steel bars
3. 3.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
6. 6.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building safer in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
8. 8.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
9. 9.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) making brittle joints (d) raising heavy tanks high
11. 11.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) using flexible joints (d) making brittle joints
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
13. 13.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🔍 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
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ 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 210 cm tall on a 30 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 B (c) tower A
17. 17.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) leaving out steel bars (d) stacking loose bricks
18. 18.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
19. 19.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) using a heavy roof (d) building tall and narrow
21. 21.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
22. 22.True or false: adding steel to concrete 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 200 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) building tall and narrow
25. 25.🏚️ 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 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) stacking loose bricks (d) raising heavy tanks high
27. 27.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) keeping a simple shape (d) leaving out steel bars
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) stacking loose bricks (d) keeping a simple shape
30. 30.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
31. 31.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a light roof (d) raising heavy tanks high
32. 32.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) adding cross bracing (d) using flexible joints
34. 34.🔍 Which is the odd one out? (a) adding cross bracing (b) making brittle joints (c) using a heavy roof (d) building tall and narrow
35. 35.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 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 A (c) tower C
37. 37.🏚️ 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 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ 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 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False

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