Internal Energy
Physics: AQA GCSE Higher, topic 1.1.3
Internal Store of Energy
The energy stored by the particles that make up an object is called the internal energy of the object.
Internal energy
- The amount of energy in an object’s internal energy is the sum (total) of the kinetic energy and potential energy stored in the object's particles.
Internal energy and temperature
- The temperature of a body (object) is a measure of the energy in the kinetic stores of its particles.
- Increasing a body’s temperature increases the energy in the kinetic stores of the body’s particles, which means that the energy in the body’s internal store also increases.
Test yourself on Internal Energy
Which of following are true of the relationship between temperature and energy?