Engineering Worksheet: Earthquake-Safe Buildings

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

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