Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 540 · 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.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ 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 80 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 A (c) tower C
3. 3.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
4. 4.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) leaving out steel bars (d) adding cross bracing
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) adding cross bracing (d) making brittle joints
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
8. 8.🏚️ 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
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ 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
11. 11.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
12. 12.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using a light roof (d) stacking loose bricks
13. 13.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
14. 14.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) making brittle joints (d) using a light roof
15. 15.🏚️ 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 160 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
16. 16.🏚️ 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 60 cm tall on a 30 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) raising heavy tanks high (d) having a wide base
20. 20.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
21. 21.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) keeping a simple shape (d) stacking loose bricks
22. 22.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) adding cross bracing (d) using flexible joints
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) making brittle joints (d) leaving out steel bars
26. 26.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) using flexible joints (d) stacking loose bricks
28. 28.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) fitting rubber base pads
29. 29.🏚️ 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 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
30. 30.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) keeping a simple shape (d) having a wide base
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.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) raising heavy tanks high
35. 35.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) using a heavy roof (d) having a wide base
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) keeping a simple shape (d) using flexible joints
38. 38.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) having a wide base (d) raising heavy tanks high
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 10 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B

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