Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 581 · 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: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) fitting rubber base pads (d) making brittle joints
3. 3.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
4. 4.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing
5. 5.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) fitting rubber base pads (d) raising heavy tanks high
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 70 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 A (b) tower B (c) tower C
9. 9.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) using flexible joints (d) having a wide base
10. 10.🏚️ 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 120 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) raising heavy tanks high (d) using flexible joints
12. 12.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) having a wide base (d) stacking loose bricks
14. 14.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) building tall and narrow (d) adding steel to concrete
16. 16.🏚️ 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 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
19. 19.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using a light roof (c) adding cross bracing (d) having a wide base
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) fitting rubber base pads (d) building tall and narrow
21. 21.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) raising heavy tanks high (d) making brittle joints
22. 22.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
23. 23.🏚️ 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 90 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) fitting rubber base pads (d) using flexible joints
27. 27.🏚️ 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 40 cm tall on a 10 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
28. 28.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
30. 30.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
31. 31.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) fitting rubber base pads (d) having a wide base
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) adding cross bracing
33. 33.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) keeping a simple shape (d) fitting rubber base pads
34. 34.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.True or false: adding cross bracing 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 20 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) raising heavy tanks high (d) making brittle joints
38. 38.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) raising heavy tanks high (d) using a heavy roof
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) making brittle joints (d) using a light roof

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