Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 166 · 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 safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) using a heavy roof (d) stacking loose bricks
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) having a wide base (d) raising heavy tanks high
4. 4.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) leaving out steel bars (d) raising heavy tanks high
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) adding cross bracing
6. 6.🏚️ 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 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) keeping a simple shape
8. 8.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) having a wide base (d) making brittle joints
9. 9.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
10. 10.🏚️ 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 60 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🏚️ 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 140 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 B (b) tower C (c) tower A
12. 12.🏚️ 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 200 cm tall on a 40 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
13. 13.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) adding steel to concrete (d) adding cross bracing
14. 14.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) fitting rubber base pads (d) having a wide base
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
16. 16.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
21. 21.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ 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
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) using a heavy roof (d) making brittle joints
24. 24.🏚️ 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 40 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
27. 27.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) keeping a simple shape (d) leaving out steel bars
28. 28.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
29. 29.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) adding steel to concrete (d) adding cross bracing
31. 31.🏚️ 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
32. 32.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) keeping a simple shape (d) adding steel to concrete
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.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ 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 40 cm tall on a 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
37. 37.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 180 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) keeping a simple shape (d) using a heavy roof
40. 40.🏚️ 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 200 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

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