Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 678 · 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 cross bracing makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
4. 4.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) using flexible joints (d) stacking loose bricks
6. 6.🏚️ 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 B (b) tower A (c) tower C
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) building tall and narrow (d) making brittle joints
8. 8.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a light roof (d) stacking loose bricks
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
10. 10.🏚️ 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
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
12. 12.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) raising heavy tanks high
16. 16.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
17. 17.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ 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 40 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
21. 21.🏚️ 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 70 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
22. 22.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) using a light roof (d) using flexible joints
23. 23.🏚️ 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 70 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) adding cross bracing (d) adding steel to concrete
25. 25.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
26. 26.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) using a heavy roof
27. 27.🏚️ 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 60 cm tall on a 10 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) building tall and narrow (d) using a light roof
30. 30.🏚️ 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 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
31. 31.🏚️ 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 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
34. 34.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) making brittle joints (d) adding steel to concrete
35. 35.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) using a light roof (d) using a heavy roof
36. 36.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
37. 37.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ 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 90 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False

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