Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 394 · 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) building tall and narrow (c) using a heavy roof (d) using a light roof
2. 2.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 200 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 A (b) tower C (c) tower B
6. 6.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using flexible joints (d) leaving out steel bars
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.🏚️ 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 80 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
10. 10.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a telescope (d) a shake table
11. 11.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) adding steel to concrete (d) leaving out steel bars
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) keeping a simple shape (d) making brittle joints
16. 16.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) building tall and narrow (d) adding steel to concrete
17. 17.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) making brittle joints
18. 18.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) making brittle joints
20. 20.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) making brittle joints (d) stacking loose bricks
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: using a heavy roof 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.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
28. 28.🏚️ 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 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) stacking loose bricks
31. 31.🏚️ 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 20 cm tall on a 10 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 B (c) tower A
32. 32.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) leaving out steel bars (d) having a wide base
33. 33.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
34. 34.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
35. 35.🏚️ 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 280 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) building tall and narrow (d) having a wide base
37. 37.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) using flexible joints
38. 38.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ 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 60 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) keeping a simple shape

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