Physics is the systematic study of the way objects , matter and energy moves, changes and interacts.
All things in the universe have basic properties that describe the ways they act and interact with other bodies. In order to make precise predictions, we will describe these properties using numerical quantities. For example, we may put a simple coordinate system over the Earth to describe the positions of satellites over time as numerical quantities.
physics is useful in everyday situations. Having an awareness of physics can help explain:
• Friction, breaks and crashes
• How water boils or freezes
• How simple machines work.
• Working out how fast or slow things go