Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 655 · 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: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) adding cross bracing (d) raising heavy tanks high
3. 3.🏚️ 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 100 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 B (b) tower A (c) tower C
4. 4.🏚️ 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 40 cm tall on a 10 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
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
6. 6.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) keeping a simple shape (d) making brittle joints
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
8. 8.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) having a wide base (c) raising heavy tanks high (d) stacking loose bricks
9. 9.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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 150 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) building tall and narrow (d) stacking loose bricks
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a microscope (d) a shake table
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
14. 14.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) using flexible joints (d) leaving out steel bars
15. 15.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) fitting rubber base pads (d) keeping a simple shape
16. 16.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
17. 17.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) adding steel to concrete (d) using a light roof
18. 18.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
19. 19.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) keeping a simple shape (d) raising heavy tanks high
20. 20.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) using flexible joints (d) adding steel to concrete
22. 22.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
23. 23.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
25. 25.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) fitting rubber base pads (d) raising heavy tanks high
26. 26.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 20 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
28. 28.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 50 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🏚️ 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 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.🏚️ 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 40 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
32. 32.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) building tall and narrow (d) keeping a simple shape
35. 35.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) stacking loose bricks (d) building tall and narrow
40. 40.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True

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