MS-PS2-2

Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.

More Stories in MS-PS2-2

  1. Physics

    When dominoes fall, how fast the row topples depends on friction

    Two types of friction help determine how quickly a line of dominoes collapses, computer modeling shows.

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  2. Physics

    Scientists Say: Inertia

    Inertia is the tendency of objects to resist changes in their motion.

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  3. Animals

    Orb-weaving spiders use their webs like external eardrums

    Scientists discover that orb-weaving spiders listen with their legs, detecting sound vibrations that travel through their silken webs.

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  4. Space

    Explainer: All about orbits

    A handful of rules can describe the route some object repeatedly takes around another in space. Calculating that path, however, can be quite complex.

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  5. Physics

    Explainer: The fundamental forces

    Four fundamental forces control all interactions between matter, from the smallest subatomic particles to the largest structures in the universe.

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  6. Tech

    Robots made of cells blur the line between creature and machine

    Scientists are using living cells and tissue as building blocks to make robots. These new machines challenge ideas about robots and life itself.

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  7. Physics

    A new device uses atoms’ quantum weirdness to peer underground

    Quantum sensors like this one could monitor magma beneath volcanoes or uncover archaeological artifacts.

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  8. Physics

    Explainer: Gravity and microgravity

    The force of gravity holds us on the ground, keeps planets in orbit and extends throughout space. A very weak gravitational pull is called microgravity.

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  9. Earth

    Volcanic avalanches may be more destructive than previously thought

    Pressures within these pyroclastic flows may be as much as three times as high as observations had suggested.

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