Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 867 · 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 stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.True or false: using a heavy roof 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 60 cm tall on a 20 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 70 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.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) leaving out steel bars (d) using a heavy roof
9. 9.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
10. 10.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) having a wide base (d) stacking loose bricks
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) making brittle joints (c) fitting rubber base pads (d) adding cross bracing
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
17. 17.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) leaving out steel bars
18. 18.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) keeping a simple shape
19. 19.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) raising heavy tanks high (d) leaving out steel bars
20. 20.🏚️ Does using a heavy 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 less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) leaving out steel bars (d) using flexible joints
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) stacking loose bricks (d) adding cross bracing
23. 23.🏚️ 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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
25. 25.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) adding cross bracing (d) using a heavy roof
26. 26.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) using flexible joints (d) using a heavy roof
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) adding cross bracing (d) building tall and narrow
30. 30.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
31. 31.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) raising heavy tanks high (d) leaving out steel bars
33. 33.🏚️ 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 80 cm tall on a 20 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
34. 34.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) having a wide base (d) using a light roof
35. 35.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a light roof (d) making brittle joints
36. 36.🏚️ 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 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.Which of these makes a building safer in earthquakes? (a) using a light roof (b) using a heavy roof (c) building tall and narrow (d) making brittle joints
39. 39.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C

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