Chemical Energy Store - GCSE Physics Definition

A chemical energy store refers to the energy held within the chemical bonds of substances and is released during a chemical reaction. In the context of the GCSE Physics course, it primarily involves the transformation of this stored energy into other forms, such as thermal or kinetic energy, which can be utilised for various purposes.

For example, when fuel is burnt in a car engine, the chemical energy stored in the fuel is converted into kinetic energy that moves the car. Similarly, the food you eat contains chemical energy, which your body transforms into energy for movement and heat.

Understanding chemical energy stores helps in analysing how energy is conserved and transformed in different processes.