Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 688 · 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.🏚️ 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 20 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 B (b) tower C (c) tower A
2. 2.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) adding cross bracing
3. 3.🏚️ 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 20 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
4. 4.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using a light roof (d) using flexible joints
8. 8.🏚️ 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
9. 9.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) fitting rubber base pads
10. 10.Which of these makes a building safer in earthquakes? (a) having a wide base (b) making brittle joints (c) stacking loose bricks (d) raising heavy tanks high
11. 11.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
14. 14.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ 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 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
17. 17.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) adding cross bracing (d) stacking loose bricks
18. 18.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
19. 19.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
20. 20.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
21. 21.🏚️ 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 10 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
23. 23.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
24. 24.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) fitting rubber base pads (d) building tall and narrow
26. 26.🏚️ 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 80 cm tall on a 40 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 100 cm tall on a 20 cm wide base, tower B is 280 cm tall on a 40 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
28. 28.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) building tall and narrow (d) using a heavy roof
31. 31.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ 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 40 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
36. 36.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) adding cross bracing (d) using flexible joints
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) adding cross bracing (d) using a light roof
38. 38.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) raising heavy tanks high (d) making brittle joints
39. 39.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) adding cross bracing
40. 40.🏚️ 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 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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