Waves in air, fluids and solids common mistakes

Common mistakes

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Use wavefront diagrams to show reflection at a plane boundary..

  Fix itAnswer by clearly explaining how to use wavefront diagrams to show reflection at a plane boundary..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Use ray diagrams to show refraction at a boundary between transparent materials..

  Fix itAnswer by clearly explaining how to use ray diagrams to show refraction at a boundary between transparent materials..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Required practical: investigate reflection of light from different types of surface..

  Fix itAnswer by clearly explaining how to required practical: investigate reflection of light from different types of surface..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Required practical: investigate refraction of light by different substances..

  Fix itAnswer by clearly explaining how to required practical: investigate refraction of light by different substances..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Required practical: measure angles of incidence, reflection and refraction using a protractor..

  Fix itAnswer by clearly explaining how to required practical: measure angles of incidence, reflection and refraction using a protractor..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Required practical: draw ray diagrams accurately from experimental data..

  Fix itAnswer by clearly explaining how to required practical: draw ray diagrams accurately from experimental data..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Explain why repeated angle measurements improve reliability in reflection and refraction practicals..

  Fix itAnswer by clearly explaining how to explain why repeated angle measurements improve reliability in reflection and refraction practicals..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Identify sources of uncertainty when tracing rays through transparent blocks..

  Fix itAnswer by clearly explaining how to identify sources of uncertainty when tracing rays through transparent blocks..

• Reflection and refraction of waves common mistake 1

  Giving a vague answer instead of directly addressing: Apply WS and MS skills when recording, plotting and interpreting reflection and refraction data..

  Fix itAnswer by clearly explaining how to apply WS and MS skills when recording, plotting and interpreting reflection and refraction data..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Describe sound waves in air as longitudinal waves..

  Fix itAnswer by clearly explaining how to describe sound waves in air as longitudinal waves..