It is surprisingly hard to say what a force really is but on a simple level we say that forces are either pushes or pulls. It would be better to label "pulls" as forces of attraction and "pushes" as forces of repulsion. Some forces have their effect when objects are in contact whereas others allow … Continue reading Contact and Non-Contact Forces
What is Static Electricity?
When work is done on an object, by moving a force through a distance, the object gains energy. As a result, the object might get hotter (gain thermal energy) or accelerate (gain kinetic energy) or be lifted upwards (gain gravitational energy). There is also another possibility; the object could gain electrical energy in the form … Continue reading What is Static Electricity?
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