Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 403 · 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 light roof makes a building safer in earthquakes. (a) False (b) True
2. 2.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) adding cross bracing (d) stacking loose bricks
4. 4.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.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) raising heavy tanks high
7. 7.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) leaving out steel bars (c) stacking loose bricks (d) using a heavy roof
8. 8.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) using flexible joints (d) raising heavy tanks high
9. 9.🏚️ 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 140 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
10. 10.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) leaving out steel bars (d) making brittle joints
12. 12.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
13. 13.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using a light roof (c) using flexible joints (d) adding steel to concrete
14. 14.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
16. 16.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
17. 17.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
18. 18.🏚️ 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
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 210 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 B (b) tower A (c) tower C
20. 20.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) making brittle joints (d) stacking loose bricks
22. 22.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
23. 23.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) having a wide base (c) using flexible joints (d) adding cross bracing
25. 25.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) building tall and narrow (d) using a heavy roof
26. 26.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) stacking loose bricks (d) making brittle joints
30. 30.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) using flexible joints (d) adding cross bracing
31. 31.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 140 cm tall on a 20 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 B (c) tower A
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) leaving out steel bars (d) using a heavy roof
34. 34.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) fitting rubber base pads (d) using a heavy roof
35. 35.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) making brittle joints (d) adding steel to concrete
38. 38.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ 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 160 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🏚️ 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 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

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