Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 979 · 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 50 cm tall on a 10 cm wide base, tower B is 80 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 C (c) tower A
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
4. 4.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) on a thin pole (d) hanging outside
6. 6.🏚️ 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 40 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: building tall and narrow makes a building safer 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.🏚️ 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 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.🏚️ 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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
12. 12.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
14. 14.🏚️ Does stacking loose bricks 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 less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) raising heavy tanks high (d) adding cross bracing
16. 16.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) having a wide base (d) using a heavy roof
17. 17.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) stacking loose bricks (d) fitting rubber base pads
19. 19.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) keeping a simple shape (d) having a wide base
21. 21.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) raising heavy tanks high (d) leaving out steel bars
23. 23.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) leaving out steel bars (d) fitting rubber base pads
24. 24.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 flexible joints
25. 25.🏚️ 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 100 cm tall on a 20 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
26. 26.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) fitting rubber base pads (d) making brittle joints
27. 27.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) keeping a simple shape
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) fitting rubber base pads (d) adding steel to concrete
30. 30.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) using a light roof (d) leaving out steel bars
31. 31.🏚️ Does raising heavy tanks high 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) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) stacking loose bricks (d) having a wide base
36. 36.🏚️ 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 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
37. 37.🏚️ 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 70 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ 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 120 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True

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