Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 883 · 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 less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) having a wide base (d) making brittle joints
2. 2.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) having a wide base (d) stacking loose bricks
3. 3.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) stacking loose bricks (d) raising heavy tanks high
4. 4.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) having a wide base (d) stacking loose bricks
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
7. 7.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) leaving out steel bars (d) using a light roof
8. 8.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using flexible joints (d) adding cross bracing
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
11. 11.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
13. 13.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) keeping a simple shape (d) fitting rubber base pads
14. 14.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) making brittle joints (d) adding cross bracing
16. 16.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 70 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 easiest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) building tall and narrow (d) using a heavy roof
19. 19.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) having a wide base (d) using a light roof
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) keeping a simple shape (d) stacking loose bricks
22. 22.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) building tall and narrow
23. 23.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) keeping a simple shape (d) adding cross bracing
24. 24.🏚️ 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
25. 25.🏚️ 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 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
26. 26.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) fitting rubber base pads (d) raising heavy tanks high
28. 28.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ 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 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
30. 30.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
31. 31.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
32. 32.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using a heavy roof (d) adding cross bracing
33. 33.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
34. 34.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
35. 35.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) building tall and narrow (d) fitting rubber base pads
36. 36.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 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
38. 38.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) raising heavy tanks high (d) keeping a simple shape
39. 39.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) building tall and narrow
40. 40.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False

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