Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 591 · 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: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
3. 3.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a light roof (c) building tall and narrow (d) having a wide base
4. 4.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
7. 7.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) using a heavy roof (d) stacking loose bricks
10. 10.🏚️ 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 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
11. 11.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
12. 12.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) using a heavy roof (d) leaving out steel bars
13. 13.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) keeping a simple shape (d) making brittle joints
14. 14.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) keeping a simple shape (d) having a wide base
15. 15.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) leaving out steel bars (d) using flexible joints
17. 17.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) building tall and narrow (d) making brittle joints
18. 18.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using flexible joints (c) adding steel to concrete (d) using a heavy roof
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
22. 22.🏚️ 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 90 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
23. 23.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
24. 24.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
28. 28.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) adding cross bracing (d) raising heavy tanks high
29. 29.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) fitting rubber base pads (d) making brittle joints
30. 30.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) adding steel to concrete (d) having a wide base
31. 31.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) fitting rubber base pads (d) stacking loose bricks
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) having a wide base (d) keeping a simple shape
34. 34.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
35. 35.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
36. 36.🏚️ 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 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🏚️ Does adding steel to concrete 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 100 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) using flexible joints (d) leaving out steel bars
40. 40.🏚️ 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 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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