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. Physics

    Scientists Say: Radiation

    Radiation is the motion of energy through space as waves or particles.

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  2. Environment

    Jumping ‘snake worms’ are invading U.S. forests

    These bad-news invaders are spreading across the United States. As they turn forest debris into bare ground, soils and ecosystems are changing.

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  3. Health & Medicine

    When physicians and veterinarians team up, all species benefit

    When doctors for people and those for animals share their expertise, they can discover new ways to take better medical care of all species.

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  4. Climate

    Let’s learn about solar power

    Solar power is a way to harness energy from the sun, and lessen our reliance on fossil fuels.

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  5. Physics

    A contrast between shadows and light can now generate electricity

    A new device exploits the contrast between bright spots and shade to produce a current that can power small electronics.

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  6. Health & Medicine

    New ultrasound treatment kills off cancer cells

    Low-frequency ultrasound destroys cancer cells while leaving most healthy cells intact.

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  7. Physics

    Soap bubbles’ ‘pop’ reveals the physics of the bursts

    A bubble’s pop is a quiet, high-pitched noise. This can reveal the forces that occur during the bubble’s demise.

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  8. Brain

    Zapping the brain may make it work right again

    Sending electrical zaps to electrodes implanted deep in the brain can help people with Parkinson’s disease, depression and even obsessive-compulsive disorder.

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  9. Space

    NASA’s Parker probe spots rogue waves and magnetic islands on the sun

    The Parker probe’s first data is giving scientists a look at what’s to come as the craft moves closer to the sun over the next few years.

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