In the assignment, students typically try to stand about three feet away from the sound source when measuring sound-intensity ...

The triangle is a small instrument made of a metal rod bent into a triangle shape that is open at one corner. While small, ...

The questions in this quiz are suitable for GCSE physics students who are studying sound waves, ultrasound and seismic waves. If you struggled with the quiz, don't panic - we've got you!

Good vibrations Penn State’s Jia-Xin Zhong used a dummy with microphones in its ears to measure the presence or absence of sound along an ultrasonic trajectory. (Courtesy: Poornima Tomy/Penn State) A ...

The triangle is a small instrument made of a metal rod bent into a triangle shape that is open at one corner. While small ...