Physics
Can energy move through time?
Quick fact
Energy cannot be created or destroyed; it can only be transferred or transformed.
Why this is interesting
Everything that happens in the universe involves energy changing form.
Read the full explanation
Understanding Can energy move through time?
Energy describes the ability of a system to cause change. It appears in many forms including motion, heat, light, chemical energy, and stored potential energy.
A deeper explanation
The concept of energy connects almost every area of physics. Mechanical energy explains motion and position, thermal energy explains heat, electromagnetic energy explains light and electricity, and nuclear energy explains the processes inside stars. The conservation of energy is one of the most fundamental principles in science.