Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 186 · 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 using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) using a light roof
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) having a wide base (d) making brittle joints
7. 7.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
8. 8.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ 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 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
10. 10.🏚️ 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 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) making brittle joints (d) keeping a simple shape
13. 13.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) fitting rubber base pads (c) raising heavy tanks high (d) adding cross bracing
14. 14.🏚️ 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 40 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 A (b) tower C (c) tower B
15. 15.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
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.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) hanging outside (d) low down
21. 21.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) building tall and narrow (d) keeping a simple shape
23. 23.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ 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 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.🏚️ 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 90 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) building tall and narrow
29. 29.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) having a wide base (c) fitting rubber base pads (d) using a light roof
30. 30.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) making brittle joints (d) using a heavy roof
31. 31.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ 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 40 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 B (b) tower C (c) tower A
36. 36.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) adding cross bracing (d) leaving out steel bars
37. 37.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) having a wide base (d) making brittle joints
38. 38.🏚️ Does raising heavy tanks high 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) fitting rubber base pads (b) using flexible joints (c) raising heavy tanks high (d) adding steel to concrete
40. 40.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True

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