Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 716 · 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.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
2. 2.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) leaving out steel bars (d) using a heavy roof
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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
5. 5.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) stacking loose bricks (d) keeping a simple shape
6. 6.🏚️ Does using flexible joints 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) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🔍 Which is the odd one out? (a) adding steel to concrete (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
10. 10.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) fitting rubber base pads (d) using a heavy roof
11. 11.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) using a light roof (d) adding steel to concrete
12. 12.🏚️ 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 160 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.🏚️ Does leaving out steel bars 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) keeping a simple shape (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
15. 15.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) having a wide base
17. 17.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) adding cross bracing (d) having a wide base
18. 18.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Does building tall and narrow 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) raising heavy tanks high (b) using a light roof (c) building tall and narrow (d) using a heavy roof
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 30 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 A (b) tower C (c) tower B
22. 22.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) building tall and narrow (d) adding steel to concrete
23. 23.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
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.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
26. 26.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) stacking loose bricks (d) using flexible joints
28. 28.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
29. 29.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) having a wide base (d) stacking loose bricks
30. 30.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a heavy roof (c) adding cross bracing (d) fitting rubber base pads
31. 31.🏚️ 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 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) stacking loose bricks (d) raising heavy tanks high
33. 33.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
34. 34.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ 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 80 cm tall on a 40 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
37. 37.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) keeping a simple shape (d) fitting rubber base pads
38. 38.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) adding steel to concrete (d) adding cross bracing
39. 39.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) keeping a simple shape (d) building tall and narrow
40. 40.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a light roof (d) using a heavy roof

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