Seeing with sound: echo lab

Learning Material  |  Interactive Lesson  |  RAR

Explore how echolocation works. Determine the distance of an object by timing an echo. Transmit a sound at a known frequency and measure the time taken until the sound waves bounce back. Send out sounds in a range of media: air, water or steel. Use a formula to calculate the exact distance of an object. This learning object is one in a series of five objects. The series is also packaged as a combined learning object.

Students use a wave model to explain the behavior of sound.
Students demonstrate that sounds take longer to return as the distance of an object increases.
Students identify ways in which sound can be utilized.

Curriculum Information

K to 12
Grade 7, Grade 8
Force Motion and Energy
Learners, Students

Copyright Information

Education Services Australia
Use, Copy

Technical Information

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