Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 839 · 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.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
2. 2.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
3. 3.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) using a light roof (d) adding cross bracing
4. 4.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 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
6. 6.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
7. 7.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
8. 8.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) having a wide base (d) leaving out steel bars
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
14. 14.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) using a light roof
17. 17.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
18. 18.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) using flexible joints
20. 20.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) using a heavy roof (d) using a light roof
22. 22.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
23. 23.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) leaving out steel bars (c) using a light roof (d) adding steel to concrete
24. 24.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) adding steel to concrete (d) leaving out steel bars
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using flexible joints (d) leaving out steel bars
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) using flexible joints (d) using a heavy roof
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) adding cross bracing (d) raising heavy tanks high
31. 31.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) using a light roof
32. 32.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) building tall and narrow (d) adding cross bracing
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) building tall and narrow (d) using a heavy roof
34. 34.🏚️ 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 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 80 cm tall on a 20 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
40. 40.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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