Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 104 · 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: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
3. 3.🏚️ 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 70 cm tall on a 10 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
4. 4.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) using a heavy roof
5. 5.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
6. 6.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) fitting rubber base pads (d) stacking loose bricks
7. 7.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
8. 8.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) using a heavy roof (d) using a light roof
10. 10.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) having a wide base (d) building tall and narrow
11. 11.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) making brittle joints (d) leaving out steel bars
12. 12.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) using a heavy roof (d) building tall and narrow
13. 13.🏚️ 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 80 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
15. 15.🏚️ 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 120 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ 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 50 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) having a wide base (d) leaving out steel bars
19. 19.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
20. 20.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
21. 21.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) using flexible joints
23. 23.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) making brittle joints (d) using a light roof
24. 24.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
26. 26.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
27. 27.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) having a wide base (d) using flexible joints
29. 29.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ 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
32. 32.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
37. 37.🏚️ 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 20 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 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 50 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 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 B (c) tower C
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 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 A (c) tower B

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