Which statement describes a physical property of copper?
The Correct Answer and Explanation is :
The correct answer is: “Copper conducts electricity.”
Copper’s ability to conduct electricity is a defining physical property, one of the characteristics that make it highly valuable in various industries, particularly in electronics and electrical engineering. A physical property is any characteristic of a substance that can be observed or measured without altering its chemical composition. In the case of copper, conductivity is a key physical property, distinguishing it as one of the most efficient conductors of electricity and heat.
Conductivity refers to the ability of a material to allow the flow of electric current. Copper’s high electrical conductivity is due to the structure of its atoms and the way electrons are arranged around them. Each copper atom has a single electron in its outer shell that can easily move from one atom to another. This movement of electrons creates an electric current, which is why copper is extensively used in wires, cables, and other electrical components.
Another physical property of copper is its malleability, which means it can be hammered or rolled into thin sheets without breaking. This makes it ideal for creating wires and intricate shapes needed in electrical circuits. Copper also has a characteristic reddish-brown color, a metallic luster, and is relatively resistant to corrosion compared to other metals, though it does develop a green patina (copper oxide) over time when exposed to the elements.
Copper’s physical properties make it an invaluable material in both household and industrial applications. Besides its use in electrical wiring, it’s widely used in plumbing, roofing, and even in art. Understanding these physical properties helps engineers, architects, and designers select copper for applications where durability, electrical conductivity, and workability are required.