character: Dr. Brown
topic: Applications of Sound Waves in Technology
grade: 9
subject: Physics
LearnActions
SearchCreate
character: Mr. Smith
topic: Ultrasound Imaging in Medicine
grade: 9
subject: Physics
LearnActions
SearchCreate
character: Ms. Johnson
topic: Sonar Technology and Marine Navigation
grade: 9
subject: Physics
LearnActions
SearchCreate
character: Professor Lee
topic: Acoustic Levitation and its Uses
grade: 9
subject: Physics
LearnActions
SearchCreate