Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 868 · 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) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) using flexible joints
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
3. 3.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) leaving out steel bars (d) using a light roof
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.🏚️ 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
7. 7.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) stacking loose bricks (d) making brittle joints
8. 8.🏚️ 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 210 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
9. 9.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
10. 10.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
13. 13.🏚️ 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 40 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🏚️ 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 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 A (b) tower B (c) tower C
15. 15.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) adding steel to concrete (d) using flexible joints
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) stacking loose bricks (d) using a heavy roof
18. 18.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) using a heavy roof (d) adding steel to concrete
19. 19.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ 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 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🏚️ 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 160 cm tall on a 40 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
22. 22.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) using flexible joints (d) making brittle joints
23. 23.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
24. 24.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) stacking loose bricks
30. 30.🏚️ 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 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding cross bracing (d) leaving out steel bars
32. 32.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding cross bracing (c) having a wide base (d) leaving out steel bars
33. 33.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) adding steel to concrete (d) keeping a simple shape
35. 35.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
36. 36.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) using flexible joints (d) using a heavy roof
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.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) adding steel to concrete (d) having a wide base
39. 39.🏚️ 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 40 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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