Waves in air, fluids and solids common mistakes

Common mistakes

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Explain that sound waves are caused by vibrating objects..

  Fix itAnswer by clearly explaining how to explain that sound waves are caused by vibrating objects..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Describe how sound waves travel through a medium by compressions and rarefactions..

  Fix itAnswer by clearly explaining how to describe how sound waves travel through a medium by compressions and rarefactions..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Explain why sound cannot travel through a vacuum..

  Fix itAnswer by clearly explaining how to explain why sound cannot travel through a vacuum..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Link higher frequency sound waves to higher pitch..

  Fix itAnswer by clearly explaining how to link higher frequency sound waves to higher pitch..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Link greater amplitude sound waves to louder sounds..

  Fix itAnswer by clearly explaining how to link greater amplitude sound waves to louder sounds..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Describe echoes as reflected sound waves..

  Fix itAnswer by clearly explaining how to describe echoes as reflected sound waves..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Interpret simple oscilloscope traces for sound waves..

  Fix itAnswer by clearly explaining how to interpret simple oscilloscope traces for sound waves..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Distinguish pitch from loudness using frequency and amplitude..

  Fix itAnswer by clearly explaining how to distinguish pitch from loudness using frequency and amplitude..

• Sound waves common mistake 1

  Giving a vague answer instead of directly addressing: Explain why the speed of sound differs in solids, liquids and gases..

  Fix itAnswer by clearly explaining how to explain why the speed of sound differs in solids, liquids and gases..

• Waves for detection and exploration (physics only) common mistake 1

  Giving a vague answer instead of directly addressing: (Physics only) Define ultrasound as sound with frequency above the upper limit of human hearing..

  Fix itAnswer by clearly explaining how to (Physics only) Define ultrasound as sound with frequency above the upper limit of human hearing..