Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 638 · 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) building tall and narrow (b) keeping a simple shape (c) stacking loose bricks (d) making brittle joints
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) stacking loose bricks (d) using a light roof
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they stop shaking (d) they are cheap
7. 7.🔍 Which is the odd one out? (a) adding cross bracing (b) making brittle joints (c) leaving out steel bars (d) raising heavy tanks high
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
9. 9.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) fitting rubber base pads
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
14. 14.🏚️ Does building tall and narrow 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) adding cross bracing (b) building tall and narrow (c) having a wide base (d) adding steel to concrete
16. 16.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ 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 240 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
19. 19.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ 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 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) using a light roof (d) using a heavy roof
23. 23.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using a heavy roof (d) fitting rubber base pads
25. 25.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is lighter (d) it is harder to tip over
26. 26.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
27. 27.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) adding cross bracing (d) adding steel to concrete
29. 29.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
30. 30.🏚️ 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 180 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) leaving out steel bars (c) adding steel to concrete (d) using a light roof
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ 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 60 cm tall on a 10 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
35. 35.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 20 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 C (c) tower B
37. 37.🏚️ 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 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 C (b) tower A (c) tower B
38. 38.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) using a heavy roof (d) leaving out steel bars
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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