Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 86 · 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 light roof makes a building safer in earthquakes. (a) True (b) False
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
3. 3.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) raising heavy tanks high (d) stacking loose bricks
5. 5.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
6. 6.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) making brittle joints
8. 8.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) using flexible joints
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) keeping a simple shape (d) raising heavy tanks high
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) using flexible joints (d) stacking loose bricks
15. 15.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
16. 16.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) making brittle joints (d) using a light roof
18. 18.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) keeping a simple shape (d) using flexible joints
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) stacking loose bricks (d) using a light roof
20. 20.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) using a heavy roof (d) raising heavy tanks high
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow
23. 23.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
24. 24.🏚️ 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 40 cm tall on a 20 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 A (c) tower C
25. 25.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) fitting rubber base pads (d) adding cross bracing
26. 26.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) adding cross bracing (d) raising heavy tanks high
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) making brittle joints (c) having a wide base (d) keeping a simple shape
28. 28.🏚️ 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 40 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
30. 30.🏚️ 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 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) adding cross bracing (d) making brittle joints
34. 34.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 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 C (b) tower B (c) tower A
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) building tall and narrow (d) fitting rubber base pads
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) stacking loose bricks (d) building tall and narrow
38. 38.🏚️ 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 80 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ 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 40 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
40. 40.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True

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