HS-PS4-1

Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.

More Stories in HS-PS4-1

  1. Computing

    A single chip like this could transmit a world’s worth of data

    The internet has a big environmental footprint. But this new type of tech could help reduce the climate impact of computing.

    By
  2. Physics

    In a breakthrough experiment, fusion gave off more energy than it used

    The sun creates energy through nuclear fusion. Now scientists have too. This achievement raises hopes for developing a new type of clean energy.

    By
  3. Earth

    Scientists Say: Seismology

    Seismology is the branch of science focused on seismic waves — vibrations that run through or around Earth.

    By
  4. Chemistry

    Was that fingerprint left during a crime? A new test may answer that

    In what could be a boon to forensics, Iowa State University chemists have come up with a way to analyze the age of fingerprints.

    By
  5. Tech

    Will the internet soon reach the one-third of people without it?  

    Access to the internet is a human right, yet much of the world can’t get online. New tech has to be affordable and usable to end this digital divide.

    By
  6. Chemistry

    Scientists Say: Fluorescence

    This property causes materials — including some animals’ skin, fur or feathers — to glow under light.

    By
  7. Materials Science

    These fabrics change color as they stretch

    Stretchy, color-shifting cloth may lead to new art, fashions and sensors. A century-old Nobel-prize-winning invention served as its inspiration.

    By
  8. Planets

    Check out the first direct look at Neptune’s rings since the ’80s

    The Voyager 2 spacecraft took the first pics of Neptune’s rings 33 years ago. Now, NASA’s James Webb telescope is providing a more detailed view of them.

    By
  9. Physics

    Cosmic timeline: What’s happened since the Big Bang

    Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.

    By