Driving question : What is the speed of sound in air?

In this activity students determine the speed of sound in air. There are two measuring methods offered in the activity. Depending on an interface a different method can be used

Topic: Sound,
Concepts: Sound wave, Speed of sound,
Grade level: High School (14-18 years),
Activity type: Data logging,
Sensors: Sound sensor,
Interface requirements: Single analog sensor input,

The Student Worksheet gives investigation instructions for students.

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The Teacher Notes includes teacher commentaries such as didactical approach, exemplary questions, assignments and data analysis.

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The Science Background describes the scientific principles that underlie the activity.

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Coach Activity/Result file can be opened in the Coach 7 Program. This requires Coach 7 to be installed on your computer.

Download activity Speed of sound - echo time (.cma7) Download result Speed of sound - echo time (.cmr7)
Download activity Speed of sound - traveling time (.cma7)