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Mechanical Systems · Term 3

Efficiency and Friction

Students will calculate the efficiency of mechanical systems and investigate the role of friction.

Key Questions

  1. Explain why no machine can be 100% efficient.
  2. Analyze the impact of friction on the efficiency of mechanical systems.
  3. Design strategies to minimize energy loss due to friction.

Ontario Curriculum Expectations

NGSS.MS-PS3-3
Grade: Grade 8
Subject: Science
Unit: Mechanical Systems
Period: Term 3

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