Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 749 · 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.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) keeping a simple shape (d) raising heavy tanks high
3. 3.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
4. 4.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) leaving out steel bars (d) using flexible joints
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) building tall and narrow (d) stacking loose bricks
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 200 cm tall on a 40 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
9. 9.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
10. 10.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a telescope (d) a microscope
12. 12.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) using a heavy roof (d) raising heavy tanks high
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
16. 16.True or false: stacking loose bricks 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 60 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.🏚️ 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 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 C (c) tower B
19. 19.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing
20. 20.🏚️ 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 50 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 C (b) tower A (c) tower B
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
23. 23.🏚️ 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
24. 24.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) using a heavy roof (b) having a wide base (c) using a light roof (d) using flexible joints
26. 26.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
27. 27.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ 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 40 cm tall on a 10 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
29. 29.🏚️ 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 180 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 A (b) tower C (c) tower B
30. 30.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) having a wide base (d) using flexible joints
31. 31.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding steel to concrete (c) keeping a simple shape (d) using flexible joints
32. 32.🏚️ 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 120 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
34. 34.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using a light roof (d) fitting rubber base pads
35. 35.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) leaving out steel bars (c) fitting rubber base pads (d) adding cross bracing
39. 39.🔍 Which is the odd one out? (a) keeping a simple shape (b) using flexible joints (c) stacking loose bricks (d) fitting rubber base pads
40. 40.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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