Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 493 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
2. 2.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
3. 3.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) leaving out steel bars (d) having a wide base
4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ 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
6. 6.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
7. 7.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
9. 9.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
11. 11.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) having a wide base
12. 12.🏚️ 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 20 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
13. 13.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) adding cross bracing (d) stacking loose bricks
16. 16.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
18. 18.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
20. 20.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) making brittle joints (d) using a light roof
23. 23.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
24. 24.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) building tall and narrow (d) using flexible joints
25. 25.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) building tall and narrow (d) fitting rubber base pads
26. 26.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) using flexible joints
27. 27.🏚️ 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 40 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.🏚️ 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 20 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 B (b) tower C (c) tower A
29. 29.🏚️ 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 50 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
31. 31.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) raising heavy tanks high (d) using flexible joints
34. 34.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) adding steel to concrete (d) keeping a simple shape
35. 35.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) adding cross bracing (d) using flexible joints
36. 36.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
37. 37.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
38. 38.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
39. 39.🏚️ 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 50 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
40. 40.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B

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