What are physical properties Class 7?
Physical properties include size, shape, colour and state (solid/liquid/gas) of a substance. Any change to the physical properties of a substance is called a physical change. Physical changes are usually reversible as no new substance is formed. It is the same substance but with changed physical properties.
What are the 2 different types of physical properties and give examples?
There are two types of physical properties: intensive and extensive. Intensive physical properties do not depend on how much of the object there is. For example, a small rock will be just as hard as a large rock. hardness, softness and speed (quickness) are intensive physical properties.
How are properties classified?
The properties of substances can be classified as either physical or chemical. Extensive properties depend on the amount of material and include mass and volume. The ratio of two extensive properties, mass and volume, is an important intensive property called density.
How can you classify physical properties of matter?
Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity.
What types of properties are used to classify mixtures?
Mixtures can be classified on the basis of particle size into three different types: solutions, suspensions, and colloids. The components of a mixture retain their own physical properties. These properties can be used to separate the components by filtering, boiling, or other physical processes.
What are the different types of mixture?
There are two types of mixtures: heterogeneous and homogeneous.
What are the 4 classifications of matter?
All “things” are classified as matter. Everything on Earth can be easily described in terms of one of four forms of matter: solid, liquid, gas, and plasma. Students are familiar with the three common forms of matter: solids, liquids, and gases.
What are the two main types of matter?
Matter can be classified into several categories. Two broad categories are mixtures and pure substances. A pure substance has a constant composition.
What is difference between matter and substance?
We can say that substance is a matter but we can say that matter is a substance. Anything that occupies space and has mass is matter but the matter that has specific composition and chemical characteristics is substance. like elements. Examples: solid, liquid and gases, sodium, mercury and oxygen.