Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 845 · 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 adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ 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 40 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
3. 3.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
4. 4.🏚️ 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 40 cm tall on a 20 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 C (c) tower A
5. 5.Which of these makes a building safer in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) building tall and narrow (d) using a heavy roof
6. 6.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) building tall and narrow (d) leaving out steel bars
8. 8.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) having a wide base (d) raising heavy tanks high
10. 10.🏚️ 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 50 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 B (b) tower C (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 60 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) keeping a simple shape (d) using a heavy roof
13. 13.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) building tall and narrow (d) using a heavy roof
15. 15.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) raising heavy tanks high (d) building tall and narrow
18. 18.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) fitting rubber base pads (d) adding steel to concrete
19. 19.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
20. 20.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) using a heavy roof (d) making brittle joints
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
23. 23.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ 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 100 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ 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 90 cm tall on a 30 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 B (c) tower C
28. 28.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ 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 50 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
31. 31.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
32. 32.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) keeping a simple shape
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 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
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) fitting rubber base pads
35. 35.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
37. 37.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) using a heavy roof (d) leaving out steel bars
38. 38.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 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 A (c) tower B
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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