Find out how to measure speed and direction by using echo. Transmit a sound at a known frequency and compare it to the frequency of sound waves that bounce back. Send out sounds in a range of media: air, water or steel. Use a formula to calculate the exact speed of a moving object. Notice that if the value is negative, the object is moving away from the observer. This learning object is one in a series of five objects. The series is also packaged as a combined learning object.
Objective
Students use a wave model to explain the behavior of sound.
Students use sound frequency values to calculate speed and direction.
Students identify ways in which sound can be utilized.
Curriculum Information
Education Type
K to 12
Grade Level
Grade 7, Grade 8
Learning Area
Science
Content/Topic
Force Motion and Energy
Intended Users
Learners, Students
Competencies
Copyright Information
Copyright
Yes
Copyright Owner
Education Services Australia
Conditions of Use
Use, Copy
Technical Information
File Size
0 bytes
File Type
application/x-rar
Software/Plug-in Requirements
Adobe Flash Player - http://get.adobe.com/flashplayer/
