Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 273 · 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 240 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
2. 2.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) making brittle joints (d) fitting rubber base pads
5. 5.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a microscope (d) a telescope
7. 7.🏚️ 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 80 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) adding cross bracing (d) using a heavy roof
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on a thin pole (d) on the very top
10. 10.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) using a heavy roof (d) fitting rubber base pads
11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using flexible joints (d) using a heavy roof
13. 13.🏚️ 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 80 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) leaving out steel bars (d) making brittle joints
16. 16.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
17. 17.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) adding cross bracing (d) stacking loose bricks
19. 19.🏚️ 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 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) adding cross bracing (d) leaving out steel bars
21. 21.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) building tall and narrow (d) keeping a simple shape
23. 23.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
24. 24.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
25. 25.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) raising heavy tanks high (d) building tall and narrow
26. 26.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
27. 27.🏚️ 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 30 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🏚️ 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 120 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 A (b) tower B (c) tower C
32. 32.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
33. 33.🏚️ 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 120 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) making brittle joints (c) having a wide base (d) fitting rubber base pads
38. 38.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using flexible joints (d) building tall and narrow
39. 39.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) keeping a simple shape (d) using flexible joints
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C

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