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Create data/raw/science/physics_basics.txt

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+ Physics is the study of matter, energy, space, and time — the fundamental ingredients of our universe. It explores how forces act, why motion happens, and how energy transfers between systems. From falling apples to orbiting planets, physics reveals patterns that repeat across scales. Classical mechanics, established by Newton, describes motion and force in everyday life, while modern physics introduces relativity and quantum theory to explain what happens at cosmic and atomic levels.
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+ In daily life, physics appears everywhere: electricity powers homes, sound waves carry voices, and light enables vision. Engineers use physics to build bridges that stand strong, aircraft that defy gravity, and circuits that compute billions of operations per second. The field also asks deeper questions: What keeps the universe expanding? Can time flow backward? Each discovery leads to more curiosity, showing that physics is not just a subject—it’s a way to think clearly about cause and effect.
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+ Understanding physics encourages problem-solving and appreciation for nature’s order. Whether calculating the energy of a cricket ball or observing galaxies through a telescope, we see how simple principles—like motion, force, and conservation—connect everything from the smallest particles to the largest cosmic structures.