Energy and Thermal Physics

Energy Stores and Transfers

• Energy can be stored in different forms, such as kinetic, potential, thermal, and electrical.
• Energy can be transferred from one form to another through various processes, including work, heat, and radiation.
• The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another.
• Energy transfers are often accompanied by energy losses, which can take the form of heat dissipation or other forms of energy that are not useful for the intended purpose.
• Efficiency is a measure of how effectively energy is transformed from one form to another, and it is expressed as a percentage.
• Exam tips: Understand the different forms of energy and be able to explain how energy is transferred between them. Be familiar with the law of conservation of energy and how it applies to real-world situations.