Facts about Potential Energy
- 10
Hydroelectric dams convert gravitational potential energy of water stored at heights up to 600 meters, with the Three Gorges Dam in China storing approximately 1.26 trillion cubic meters of water.
- 09
Nuclear potential energy stored in one kilogram of uranium-235 releases approximately 82 trillion joules during complete fission, enough to power a typical home for 2,000 years.
- 08
The 2011 Fukushima nuclear disaster released approximately 940 petajoules of thermal energy, demonstrating how nuclear potential energy stored in uranium-235 atoms dwarfs chemical energy sources by a factor of millions.
- 07
Batteries store electrical potential energy through chemical reactions separated by a semipermeable membrane, with a standard alkaline AA battery containing roughly 9,360 joules of energy.
- 06
Gravitational potential energy differences between Earth's surface and the Moon's orbit amount to approximately 60 megajoules per kilogram, explaining why escape velocity reaches 11.2 kilometers per second.
- 05
At the molecular level, the breaking of chemical bonds in glucose during cellular respiration releases approximately 2,870 kilojoules per mole, powering ATP synthesis for human muscle contraction and brain function.
- 04
Chemical potential energy in one kilogram of TNT equals approximately 4.6 megajoules, enough to lift that same mass roughly 470 kilometers straight up against Earth's gravity.
- 03
Elastic potential energy stored in a stretched spring increases with the square of its displacement, following Hooke's Law where energy equals one-half times the spring constant times distance squared.
- 02
A 100-kilogram object lifted 10 meters against Earth's gravity stores approximately 9,800 joules of gravitational potential energy at that height.
- 01
In 1847, Hermann von Helmholtz mathematically formalized potential energy as stored work capable of conversion to kinetic energy in physical systems.