Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 88 · 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.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
3. 3.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
4. 4.🏚️ 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 120 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
5. 5.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) having a wide base (d) keeping a simple shape
10. 10.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) adding steel to concrete (d) building tall and narrow
11. 11.🏚️ 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
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) leaving out steel bars (d) keeping a simple shape
13. 13.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) using a light roof (d) leaving out steel bars
14. 14.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
15. 15.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
17. 17.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) having a wide base (d) adding steel to concrete
18. 18.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
19. 19.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) adding cross bracing
20. 20.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) making brittle joints
21. 21.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ 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 40 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) using a heavy roof (d) using a light roof
24. 24.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) leaving out steel bars (d) using a heavy roof
25. 25.🏚️ 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 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 A (b) tower B (c) tower C
26. 26.🏚️ 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 280 cm tall on a 40 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 A (c) tower B
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) using a heavy roof (c) leaving out steel bars (d) making brittle joints
28. 28.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) leaving out steel bars (d) fitting rubber base pads
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.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
31. 31.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
32. 32.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
33. 33.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ 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 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) having a wide base (d) adding steel to concrete
38. 38.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
39. 39.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) building tall and narrow (d) fitting rubber base pads
40. 40.🏚️ 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 40 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B

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