Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 458 · 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 120 cm tall on a 40 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 80 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.🏚️ 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 210 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) using a light roof (d) having a wide base
4. 4.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) using a light roof
5. 5.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) leaving out steel bars (c) making brittle joints (d) raising heavy tanks high
6. 6.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
9. 9.🏚️ Does leaving out steel bars 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 30 cm tall on a 10 cm wide base, tower B is 10 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 C (b) tower B (c) tower A
11. 11.🏚️ 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 80 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
13. 13.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using flexible joints (c) stacking loose bricks (d) using a heavy roof
15. 15.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) having a wide base (d) raising heavy tanks high
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) keeping a simple shape
18. 18.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) raising heavy tanks high (d) keeping a simple shape
19. 19.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) stacking loose bricks (d) having a wide base
20. 20.🏚️ 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 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
24. 24.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) building tall and narrow (d) leaving out steel bars
25. 25.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) adding steel to concrete (d) having a wide base
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) using a heavy roof (d) fitting rubber base pads
29. 29.🏚️ 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 20 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
30. 30.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
31. 31.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a heavy roof (d) using flexible joints
33. 33.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) adding cross bracing (d) using a light roof
35. 35.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) adding steel to concrete (d) building tall and narrow
38. 38.🏚️ 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 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False

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