Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 39 · 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: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ 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 80 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
3. 3.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) having a wide base
5. 5.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) adding steel to concrete (d) building tall and narrow
6. 6.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
8. 8.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) stacking loose bricks (d) using a heavy roof
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they look nice (d) they stop shaking
10. 10.🏚️ Does building tall and narrow 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 40 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
12. 12.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) building tall and narrow (d) using a heavy roof
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
16. 16.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
17. 17.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) leaving out steel bars (d) raising heavy tanks high
19. 19.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
22. 22.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) adding cross bracing (d) keeping a simple shape
23. 23.🏚️ 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 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
26. 26.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) raising heavy tanks high (d) making brittle joints
27. 27.🏚️ 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 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) using flexible joints (d) having a wide base
31. 31.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) using a heavy roof (d) making brittle joints
32. 32.🏚️ 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 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) using a heavy roof (d) making brittle joints
36. 36.🏚️ 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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) having a wide base (d) stacking loose bricks
38. 38.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) having a wide base (d) making brittle joints

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