Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 17 · 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 cross bracing (b) having a wide base (c) raising heavy tanks high (d) using a light roof
2. 2.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
4. 4.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) stacking loose bricks
5. 5.Which of these makes a building safer in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) building tall and narrow (d) stacking loose bricks
6. 6.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
7. 7.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) using flexible joints (d) leaving out steel bars
8. 8.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ 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
10. 10.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ 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 120 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
12. 12.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) using flexible joints (d) adding cross bracing
13. 13.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) leaving out steel bars (d) keeping a simple shape
15. 15.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) keeping a simple shape (d) building tall and narrow
17. 17.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) keeping a simple shape (d) building tall and narrow
18. 18.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) having a wide base (d) raising heavy tanks high
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does using a light roof 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 safer in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) raising heavy tanks high (d) stacking loose bricks
22. 22.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
23. 23.🏚️ 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 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 30 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) leaving out steel bars (d) having a wide base
30. 30.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) adding steel to concrete (d) adding cross bracing
31. 31.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
32. 32.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
33. 33.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) using a heavy roof (d) building tall and narrow
36. 36.True or false: making brittle joints 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 100 cm tall on a 20 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) fitting rubber base pads (d) using a heavy roof
39. 39.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🏚️ 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 120 cm tall on a 40 cm base and tower C is 10 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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