Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 880 · 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.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) having a wide base (d) leaving out steel bars
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) keeping a simple shape (d) building tall and narrow
3. 3.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) building tall and narrow (d) fitting rubber base pads
5. 5.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) building tall and narrow (d) using flexible joints
8. 8.🏚️ 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 80 cm tall on a 20 cm base and tower C is 160 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) keeping a simple shape (d) having a wide base
10. 10.🔍 Which is the odd one out? (a) adding cross bracing (b) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
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 280 cm tall on a 40 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
12. 12.🏚️ 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 150 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
13. 13.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) using flexible joints (d) adding steel to concrete
14. 14.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) stacking loose bricks (d) using a heavy roof
15. 15.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ 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 40 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
20. 20.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) having a wide base (d) adding steel to concrete
21. 21.🏚️ 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
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) building tall and narrow (d) adding cross bracing
24. 24.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) stacking loose bricks (d) making brittle joints
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
26. 26.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
29. 29.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
30. 30.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
31. 31.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) adding steel to concrete (d) using flexible joints
33. 33.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) leaving out steel bars
34. 34.🏚️ 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 120 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) using a light roof (d) making brittle joints
36. 36.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) adding steel to concrete (d) leaving out steel bars
37. 37.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) raising heavy tanks high (d) adding cross bracing
38. 38.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
40. 40.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high

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