Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 755 · 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 light roof (b) making brittle joints (c) leaving out steel bars (d) building tall and narrow
2. 2.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) using a light roof (d) using a heavy roof
5. 5.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
6. 6.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
7. 7.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) stacking loose bricks (d) using a light roof
8. 8.🏚️ 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 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) adding steel to concrete (d) raising heavy tanks high
10. 10.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) fitting rubber base pads (d) stacking loose bricks
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) fitting rubber base pads
13. 13.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
14. 14.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) keeping a simple shape (d) adding cross bracing
15. 15.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.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 flexible joints
17. 17.🏚️ 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 240 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.🏚️ 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 60 cm tall on a 20 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
19. 19.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) building tall and narrow (d) having a wide base
20. 20.🏚️ 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 20 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) building tall and narrow
22. 22.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
23. 23.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) adding steel to concrete
24. 24.🏚️ 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 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ 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 20 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 B (b) tower C (c) tower A
27. 27.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) leaving out steel bars (d) using flexible joints
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
30. 30.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
31. 31.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ 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
33. 33.🏚️ 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 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) using a light roof (d) using a heavy roof
37. 37.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) leaving out steel bars (d) making brittle joints
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 180 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ 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 40 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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