Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 683 · 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 using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) having a wide base
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) making brittle joints (d) leaving out steel bars
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) adding steel to concrete (d) making brittle joints
9. 9.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) fitting rubber base pads (d) raising heavy tanks high
10. 10.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
11. 11.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) raising heavy tanks high (d) using flexible joints
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
14. 14.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) making brittle joints (b) building tall and narrow (c) stacking loose bricks (d) having a wide base
16. 16.🏚️ 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 20 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
17. 17.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
18. 18.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ 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
20. 20.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) using flexible joints (d) building tall and narrow
21. 21.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) having a wide base (d) using flexible joints
22. 22.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) stacking loose bricks (d) using flexible joints
23. 23.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using flexible joints (d) adding cross bracing
24. 24.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
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 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 C (b) tower B (c) tower A
28. 28.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) using a light roof (d) building tall and narrow
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
31. 31.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
32. 32.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 120 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 B (b) tower C (c) tower A
34. 34.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) leaving out steel bars (d) building tall and narrow
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) leaving out steel bars (d) building tall and narrow
38. 38.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False

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