HS-PS4-3

Evaluate the claims, evidence, and reasoning behind the idea that electromagnetic radiation can be described either by a wave model or a particle model, and that for some situations one model is more useful than the other.

More Stories in HS-PS4-3

  1. Materials Science

    Nano medicines take aim at big diseases

    Nanomedicines are new treatments and tools that are taking aim at disease from the cellular level. Medicine’s next big thing could be very teeny tiny.

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  2. Physics

    Famous physics cat now alive, dead and in two boxes at once

    Splitting Erwin Schrödinger’s famous — and fictitious — cat between two boxes brings scientists one step closer to building quantum computers from microwaves.

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  3. Earth

    Cool Jobs: Getting to know volcanoes

    It’s too hot to explore the insides of a volcano. These scientists examine their lava, their low-frequency rumblings and their ‘vog’.

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  4. Space

    Hurricane at this galaxy’s center is wicked fast

    The gale-force winds around one quasar whip by at almost 200 million kilometers per hour. That’s 625,000 times faster than the strongest hurricanes on Earth.

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  5. Tech

    Feeling objects that aren’t there

    A new technology uses high-frequency sound waves to create virtual objects you can feel. Its uses include better video games and safer driving.

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  6. Tech

    Laser vision reveals hidden worlds

    From discovering ancient ruins to forecasting climate change, the laser mapping technology called lidar is changing many fields of science.

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  7. Tech

    Explainer: What are lidar, radar and sonar?

    Radar, sonar and lidar and are three similar technologies. Each relies on the echoing of waves — radio, sound or light waves — to detect objects.

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