Work is done when a force acts on a moving body ... Work done has the same units as energy - joules. This is because energy is the ability to do work. You must have energy to do work.

Their findings suggest that dark energy is not constant; instead, it appears to be losing strength over time. A New Type of Particle – There might be an unknown force or particle affecting dark ...

An elastic object, such as a spring, stores elastic potential energy when stretched or squashed. The extension of an elastic object is directly proportional to the force applied. This equation ...

Clean energy comes from nuclear and renewable sources ... solar is set to be an unstoppable force. "As the fastest-growing and largest source of new electricity, it is critical in meeting the ...

The mysterious force called Dark Energy, which drives the expansion of the Universe, might be changing in a way that challenges our current understanding of time and space, scientists have found.