Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 489 · 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.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using a heavy roof (d) having a wide base
3. 3.Which of these makes a building safer in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) making brittle joints (d) building tall and narrow
4. 4.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) adding cross bracing
5. 5.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) leaving out steel bars (d) fitting rubber base pads
6. 6.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
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 100 cm tall on a 20 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
8. 8.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
9. 9.🏚️ 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 60 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) having a wide base (d) making brittle joints
12. 12.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) using flexible joints (d) stacking loose bricks
16. 16.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) building tall and narrow (d) leaving out steel bars
17. 17.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) building tall and narrow (d) adding cross bracing
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 210 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using a light roof (d) stacking loose bricks
20. 20.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
22. 22.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) building tall and narrow (c) using a light roof (d) adding steel to concrete
23. 23.🏚️ 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 20 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
24. 24.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ 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 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
26. 26.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
27. 27.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
28. 28.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) stacking loose bricks (d) having a wide base
29. 29.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) fitting rubber base pads (d) using flexible joints
30. 30.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) fitting rubber base pads (d) using a heavy roof
31. 31.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
32. 32.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is harder to tip over (d) it is colourful
36. 36.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) adding steel to concrete (d) adding cross bracing
37. 37.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
38. 38.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) making brittle joints (c) stacking loose bricks (d) using a heavy roof
39. 39.🔍 Which is the odd one out? (a) fitting rubber base pads (b) stacking loose bricks (c) having a wide base (d) adding steel to concrete
40. 40.🏚️ 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 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C

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