引言
物理是自然科学的重要分支，贯穿于我们日常生活的方方面面。让我们一起来看看生活中的50个有趣的物理小知识，相信会让你眼前一亮！
1. 牛顿第一定律
牛顿第一定律也叫惯性定律，它由英国物理学家牛顿在1687年提出。它的表述是：一个物体如果没有外力作用，将保持静止状态或匀速直线运动状态。
2. 光的折射
当光从一种介质射向另一种介质时，会因为介质密度不同而发生折射。这种现象在水面上看到的漂亮光影就是光的折射。
3. 热胀冷缩
温度上升时，物体会膨胀，而温度下降时则会收缩。这就是生活中常见的物体因温度变化而产生的热胀冷缩现象。
4. 起搏器
心脏起搏器是利用电学原理制成的医疗设备，用于治疗心律不齐等心脏疾病。
5. 阿基米德原理
阿基米德原理是描述浮力的原理，它指出浸没在液体中的物体所受的浮力大小等于它排开的液体的重量。
结语
通过以上介绍，相信大家对生活中的物理小知识有了更深入的了解。物理原理无处不在，了解这些知识有助于我们更好地认识世界，也让我们更加热爱这个神奇的世界！感谢您的阅读！
英文翻译对照，仅供参考
Foreword
Physics is the main branch of science, perforative the square field surface that lives daily at us. Let us see 50 in the life interesting physics little knowledge together, believe to be able to let you shine at the moment!
1.Newton the first law
The first law also calls Newton inertial law, it was put forward 1687 by British physicist Newton. Its stating is: If an object does not have outside force action, will maintain static condition or divide evenly fast sharp movement condition.
2.Smooth reflection
Shoot from a kind of medium when light to another kind of medium when, because medium density differs and the meeting produces reflection. The brilliant light movie that this kind of phenomenon sees on surface is smooth reflection.
3.Heat bilges cold shrink
When temperature rises, the object can expand, and when temperature drops, can contract. The heat that this lives to the object that middling sees changes because of temperature and arise namely bilges cold shrink phenomenon.
4.Pacemaker
Pacemaker is the medical treatment device that uses electricity principle to be made, use at treating the heart disease such as arrhythmia.
5.Archimedes's principle
The Archimedes's principle is the principle that describes buoyancy, the buoyancy size that it points out to the object place in the liquid suffers immersion is equal to the liquid weight that it discharges.
Epilogue
Pass above introduction, believe everybody little to the physics in the life knowledge had more thorough knowledge. Nowhere is not in physical principle, understand these knowledge to conduce to us knowing the world better, also make us more hot love this magical world! Those who thank you read!
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