Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 793 · 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: having a wide base makes a building less safe in earthquakes. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) having a wide base (d) stacking loose bricks
3. 3.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
6. 6.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) stacking loose bricks (d) adding cross bracing
8. 8.🏚️ 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 80 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
10. 10.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ 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 30 cm tall on a 10 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
12. 12.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) stacking loose bricks (d) fitting rubber base pads
13. 13.🏚️ 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 60 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
14. 14.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
15. 15.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) using a heavy roof (d) keeping a simple shape
17. 17.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) using flexible joints (d) building tall and narrow
18. 18.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 30 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
20. 20.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) leaving out steel bars (d) raising heavy tanks high
21. 21.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
22. 22.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a light roof (c) making brittle joints (d) using a heavy roof
24. 24.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) leaving out steel bars (d) making brittle joints
27. 27.🏚️ Does raising heavy tanks high 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) making brittle joints (b) building tall and narrow (c) keeping a simple shape (d) using a heavy roof
29. 29.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) adding cross bracing (d) making brittle joints
31. 31.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
32. 32.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) using flexible joints (d) fitting rubber base pads
33. 33.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) keeping a simple shape (d) fitting rubber base pads
34. 34.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
35. 35.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) making brittle joints (c) fitting rubber base pads (d) adding cross bracing
36. 36.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 60 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 B (b) tower A (c) tower C
38. 38.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) stacking loose bricks (d) fitting rubber base pads
40. 40.🏚️ 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 B (b) tower A (c) tower C

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