Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 319 · 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 30 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 20 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 C (c) tower A
2. 2.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) keeping a simple shape (d) building tall and narrow
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ 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 180 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) keeping a simple shape
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
7. 7.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) using flexible joints
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
9. 9.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
11. 11.🏚️ 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 20 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) using a heavy roof (d) fitting rubber base pads
13. 13.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) raising heavy tanks high (d) using a heavy roof
16. 16.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) fitting rubber base pads (d) raising heavy tanks high
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) adding cross bracing (d) making brittle joints
19. 19.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) having a wide base
20. 20.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) leaving out steel bars (d) stacking loose bricks
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 10 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 C (c) tower B
22. 22.🏚️ 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 200 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) adding steel to concrete (d) having a wide base
24. 24.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) keeping a simple shape (d) adding steel to concrete
26. 26.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
27. 27.🏚️ 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 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
28. 28.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
30. 30.🏚️ 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 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
31. 31.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) fitting rubber base pads (d) using flexible joints
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) leaving out steel bars (d) building tall and narrow
34. 34.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) stacking loose bricks (d) adding steel to concrete
36. 36.🏚️ 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 20 cm tall on a 20 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
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) using flexible joints (c) adding cross bracing (d) fitting rubber base pads
39. 39.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ 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 50 cm tall on a 10 cm base and tower C is 30 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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