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what is a physical change.

Physical change:

Some changes affect only the physical properties of the substance that is undergoing change. Physical properties include shape, size, colour and state of matter.

Some properties of physical changes are:

  • A physical change is temporary.

  • No new substance is formed when a physical change takes place.

  • Forms of energy, such as heat, light and electricity, are neither emitted nor absorbed in a physical change.

  • A physical change is generally reversible.

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the change in physical properties like colour shape and size and generally this change is reverssible and no new substance forms in it..

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A physical change is a change in which no new substance is formed.

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A physical change is a temperory change formed by a substance.

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 Physical changes are changes affecting the form of a chemical substance but do not change the chemical composition of that substance. Physical changes are used to separate the mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances. In general a physical change is reversible using physical means. For example salt dissolved in water can be recovered by allowing the water to evaporate.

A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of stength, change of durability, changes to crystal form, textural change, shape, size, colour, volume and density

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  1. The change in which no new substance is formed.
  2. The properties of the substance remain the same.
  3. it is maostly reversible.

for ex - Melting of ice etc.

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