HS-PS2-5

Plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field and that a changing magnetic field can produce an electric current.

  1. Physics

    Boom! Sounding out the enemy

    Armistice Day marked the end of the Great War. But what arguably won the war was acoustics — the science of sound. It allowed Allied troops to home in on and rout the enemy.

    By Ron Cowen
  2. Computing

    Electricity: Cutting the cords

    Engineers are working to charge more wireless gadgets — without relying on cords and plugs.

    By Kathiann Kowalski
  3. Physics

    Like electricity, but magnetic

    Getting magnetic poles on the move makes a new kind of flow.

    By Stephen Ornes