20 Examples of Physical Changes
Miscellanea / / July 04, 2021
Physical changes
The Physical changes are modifications or transformations that occur in any matter but they do not imply a modification in its nature or composition. The latter would imply a chemical change.
The Physical changes they occur in relation to volume, shape, or even state. That is why they can be detected from observation or by measuring the body in question.
A very simple way to recognize if some matter underwent a physical change is that it can be reversed and returned to its previous state.
See also:Examples of Physical Phenomena
Types of physical changes
Within the physical changes we can identify them in three large groups:
Volume changes
Regressive changes
Changes like these are what occurs when bodies cool down. Within these three variants can be identified:
Regressive changes
Changes like these are those that occur when bodies come into contact with high temperatures. Within these, four variants can be identified, which are detailed below:
See also: Temporary and Permanent Transformations
Examples of physical changes
Below is a list of physical changes as an example:
- When an ice cube is placed near the fire and it melts, it goes from solid to liquid, but without losing its nature.
- When a sheet of paper is torn into several pieces.
- When the mercury found in a thermometer comes into contact with high temperatures, its size expands, but its nature does not change because of this.
- When you put water to boil in a pot, it goes from a solid to a gaseous state.
- When a glass is fogged, after a while droplets begin to form. This is as a consequence that the water vapor turns into liquid.
- When the ice cream is out of the freezer and thaws.
- When glass comes into contact with high temperatures, it becomes more malleable.
- When a piece of cheese is grated with a grater.
- When the clouds collide and it rains, the water goes from a gaseous state to a liquid.
- When a metal such as gold is melted, it goes from a solid to a liquid.
- Dissolve a tablespoon of sugar in a glass of water. Although that one dissolves, neither of the two elements can its qualities.
- When we forget a bottle of Coke in the freezer and it freezes, it goes from a liquid to a solid state.
- When there are high temperatures and the concrete in the street swells and sometimes even cracks.
- When a piece of iron is filed.
- When we leave a bottle of alcohol open and it evaporates.
- When we fill the coolers with water and put them in the freezer, we will soon have ice cubes. In this case, the water goes from a liquid to a solid state.
- When we wash our hair and then dry it with the hair dryer.
- When we break a stone into several pieces.
- When we mold a piece of plasticine.
- Over time, perfumes evaporate. That is, they go from a liquid to a gaseous state.
Follow with: Examples of Chemical Changes