Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 261 · 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) keeping a simple shape (b) leaving out steel bars (c) using a heavy roof (d) making brittle joints
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) building tall and narrow (d) adding steel to concrete
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
4. 4.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) fitting rubber base pads (d) leaving out steel bars
5. 5.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
7. 7.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
10. 10.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ 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 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
14. 14.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) having a wide base
15. 15.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
16. 16.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
17. 17.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) using a light roof (d) stacking loose bricks
19. 19.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) leaving out steel bars (d) having a wide base
20. 20.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
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 100 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) building tall and narrow
24. 24.🏚️ 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 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ 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 160 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.🏚️ 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 200 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
29. 29.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) fitting rubber base pads (d) making brittle joints
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) keeping a simple shape (d) using a heavy roof
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.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) adding steel to concrete
37. 37.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) making brittle joints (d) using flexible joints
38. 38.🏚️ 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 60 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 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 50 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.🏚️ 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 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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