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Grade 9 · Engineering & design

Grade 9 Engineering & design practice

20 questions on materials. The answer key is a separate download.

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What is on the worksheet

  1. A rod has L₀=5 m and α=27×10⁻⁶ K⁻¹. For temperature rise 89 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  2. A rod has L₀=8 m and α=30×10⁻⁶ K⁻¹. For temperature rise 61 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  3. A rod has L₀=12 m and α=5×10⁻⁶ K⁻¹. For temperature rise 39 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  4. A rod has L₀=13 m and α=27×10⁻⁶ K⁻¹. For temperature rise 49 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  5. A rod has L₀=4 m and α=2×10⁻⁶ K⁻¹. For temperature rise 46 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  6. A rod has L₀=5 m and α=7×10⁻⁶ K⁻¹. For temperature rise 62 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  7. A rod has L₀=3 m and α=13×10⁻⁶ K⁻¹. For temperature rise 81 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  8. A rod has L₀=6 m and α=28×10⁻⁶ K⁻¹. For temperature rise 11 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  9. A rod has L₀=4 m and α=11×10⁻⁶ K⁻¹. For temperature rise 28 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  10. A rod has L₀=10 m and α=17×10⁻⁶ K⁻¹. For temperature rise 11 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  11. A rod has L₀=2 m and α=14×10⁻⁶ K⁻¹. For temperature rise 59 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  12. A rod has L₀=4 m and α=13×10⁻⁶ K⁻¹. For temperature rise 80 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  13. A rod has L₀=11 m and α=12×10⁻⁶ K⁻¹. For temperature rise 33 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  14. A rod has L₀=2 m and α=30×10⁻⁶ K⁻¹. For temperature rise 10 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  15. A rod has L₀=10 m and α=15×10⁻⁶ K⁻¹. For temperature rise 13 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  16. A rod has L₀=9 m and α=16×10⁻⁶ K⁻¹. For temperature rise 42 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  17. A rod has L₀=3 m and α=2×10⁻⁶ K⁻¹. For temperature rise 33 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  18. A rod has L₀=7 m and α=2×10⁻⁶ K⁻¹. For temperature rise 53 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  19. A rod has L₀=9 m and α=24×10⁻⁶ K⁻¹. For temperature rise 22 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

  20. A rod has L₀=6 m and α=15×10⁻⁶ K⁻¹. For temperature rise 42 K, find length increase in mm. Round the final result to 4 decimal places if needed. Answer in mm.

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