Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 687 · 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 adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
3. 3.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) adding steel to concrete (d) keeping a simple shape
4. 4.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) using flexible joints (d) stacking loose bricks
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) having a wide base (d) adding cross bracing
7. 7.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) using a heavy roof
10. 10.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
11. 11.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) fitting rubber base pads (d) building tall and narrow
12. 12.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) using a light roof (d) raising heavy tanks high
14. 14.🏚️ 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 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
16. 16.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
17. 17.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) stacking loose bricks (d) keeping a simple shape
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) keeping a simple shape (d) fitting rubber base pads
19. 19.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) raising heavy tanks high (d) keeping a simple shape
22. 22.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
24. 24.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
25. 25.🔍 Which is the odd one out? (a) stacking loose bricks (b) fitting rubber base pads (c) adding steel to concrete (d) adding cross bracing
26. 26.🏚️ 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 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 20 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 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 50 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 hardest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.Which of these makes a building safer in earthquakes? (a) having a wide base (b) building tall and narrow (c) leaving out steel bars (d) stacking loose bricks
30. 30.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ 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
32. 32.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
34. 34.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) making brittle joints (d) adding steel to concrete
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 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 A (c) tower B
38. 38.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) adding steel to concrete (d) leaving out steel bars
39. 39.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) leaving out steel bars (d) making brittle joints
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True

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