Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 531 · 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 keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) fitting rubber base pads (d) using flexible joints
3. 3.🏚️ 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 160 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) adding cross bracing (d) using a heavy roof
5. 5.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
6. 6.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) stacking loose bricks (d) raising heavy tanks high
7. 7.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
8. 8.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) keeping a simple shape (d) using a heavy roof
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ 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 50 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 B (b) tower A (c) tower C
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) adding cross bracing
15. 15.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) leaving out steel bars (d) making brittle joints
16. 16.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 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
19. 19.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) leaving out steel bars
21. 21.🏚️ 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 40 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) fitting rubber base pads (d) using a light roof
23. 23.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ 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 200 cm tall on a 40 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 A (c) tower B
27. 27.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) making brittle joints (d) adding steel to concrete
28. 28.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) having a wide base (d) using a light roof
29. 29.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
30. 30.🏚️ 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 40 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
32. 32.🏚️ 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 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
33. 33.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) adding steel to concrete (d) having a wide base
34. 34.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) using a heavy roof (d) using flexible joints
38. 38.🏚️ 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 20 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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