physical property

简明释义

物理性质

英英释义

例句

1.The melting point is a key physical property 物理性质 used to identify substances.

熔点是用于识别物质的一个关键物理性质物理性质。

2.The density is a crucial physical property 物理性质 that helps determine whether an object will float or sink in water.

密度是一个重要的物理性质物理性质，它有助于确定一个物体是浮在水面上还是沉入水中。

3.Color is often the first physical property 物理性质 we notice when observing an object.

颜色通常是我们在观察物体时注意到的第一个物理性质物理性质。

4.The physical property 物理性质 of hardness determines how resistant a material is to scratching.

硬度的物理性质物理性质决定了材料抵抗划伤的能力。

5.Thermal conductivity is an important physical property 物理性质 for materials used in insulation.

热导率是用于绝缘材料的重要物理性质物理性质。

作文

In the realm of science, understanding materials is crucial for various applications, ranging from engineering to chemistry. One fundamental aspect of materials is their physical property. A physical property refers to characteristics that can be observed or measured without changing the substance's chemical identity. These properties include attributes such as color, density, boiling point, melting point, and electrical conductivity. For instance, when we examine water, we can note its colorless appearance, a boiling point of 100 degrees Celsius at standard atmospheric pressure, and a density of 1 g/cm³. Each of these characteristics is a physical property that helps us understand how water behaves under different conditions.The significance of physical properties extends beyond mere observation; they play a vital role in material selection for various applications. For example, in construction, the physical properties of materials like concrete, steel, and wood determine their suitability for specific structures. Engineers must consider the tensile strength, thermal conductivity, and durability—each a physical property—to ensure safety and longevity in their designs.Moreover, physical properties are essential in the field of chemistry. When conducting experiments, chemists rely on the physical properties of substances to predict how they will react under certain conditions. For example, the solubility of a substance in water is a physical property that can indicate whether it will dissolve or form a precipitate when mixed with another solution. Understanding these properties allows chemists to manipulate reactions effectively and create new compounds.In everyday life, we encounter physical properties regularly. When choosing clothing, we often consider the fabric's texture, weight, and breathability—all of which are physical properties. These attributes influence our comfort and satisfaction with our purchases. Similarly, when selecting food items, we might examine the color, size, and firmness of fruits and vegetables, which are also examples of physical properties that can indicate freshness and quality.Furthermore, the study of physical properties can lead to advancements in technology. For instance, the development of new materials with specific physical properties has led to innovations in electronics, such as lighter and more efficient batteries. Researchers explore the physical properties of materials at the molecular level to create products that enhance our daily lives.In conclusion, physical properties are integral to our understanding of materials in science and everyday life. They provide essential information that influences decision-making in various fields, from construction to chemistry and even consumer choices. By recognizing the importance of physical properties, we can better appreciate the complexities of the world around us and make informed decisions based on our observations and measurements. As we continue to explore and innovate, the knowledge of physical properties will remain a cornerstone of scientific inquiry and practical application.

在科学领域，理解材料对于各种应用至关重要，从工程到化学。材料的一个基本方面是它们的物理性质。物理性质指的是可以观察或测量的特征，而不改变物质的化学身份。这些属性包括颜色、密度、沸点、熔点和电导率等。例如，当我们检查水时，可以注意到它无色的外观、在标准大气压下的沸点为100摄氏度，以及密度为1克/立方厘米。每一个特征都是一个物理性质，帮助我们理解水在不同条件下的行为。物理性质的重要性不仅限于简单的观察；它们在材料选择的各个应用中发挥着重要作用。例如，在建筑中，混凝土、钢材和木材等材料的物理性质决定了它们是否适合特定结构。工程师必须考虑抗拉强度、热导率和耐久性——每一个都是物理性质——以确保其设计的安全性和持久性。此外，物理性质在化学领域中也至关重要。在进行实验时，化学家依赖于物质的物理性质来预测它们在特定条件下的反应。例如，某种物质在水中的溶解度是一个物理性质，可以指示它在与另一种溶液混合时是否会溶解或形成沉淀。理解这些属性使化学家能够有效地操控反应并创造新化合物。在日常生活中，我们经常遇到物理性质。在选择衣物时，我们通常会考虑面料的质地、重量和透气性——这些都是物理性质。这些属性影响我们对购买的舒适度和满意度。同样，在选择食品时，我们可能会检查水果和蔬菜的颜色、大小和坚实度，这也是物理性质的例子，可以指示新鲜度和质量。此外，对物理性质的研究可以推动技术进步。例如，具有特定物理性质的新材料的发展促进了电子产品的创新，如更轻、更高效的电池。研究人员探索材料在分子水平上的物理性质，以创造出增强我们日常生活的产品。总之，物理性质是我们理解科学和日常生活中材料的基础。它们提供了重要的信息，影响着各个领域的决策，从建筑到化学，甚至是消费者选择。通过认识到物理性质的重要性，我们可以更好地欣赏周围世界的复杂性，并根据我们的观察和测量做出明智的决策。随着我们继续探索和创新，物理性质的知识将始终是科学探究和实际应用的基石。