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Some types of matter can make it difficult for energy to pass through it. Specifically electricity and heat.
Some types of matter can make it difficult for energy to pass through it. Specifically electricity and heat.
Conductors are materials that allow electricity and heat to easily pass through it
Conductors are materials that allow electricity and heat to easily pass through it
Insulators are materials that DO NOT allow electricity and heat to easily pass through it
Insulators are materials that DO NOT allow electricity and heat to easily pass through it
Scientists use conductors and insulators to design a wide variety of different items (coolers, computers, cell phones, shoes, etc)
Scientists use conductors and insulators to design a wide variety of different items (coolers, computers, cell phones, shoes, etc)
Static Electricity
Static Electricity
Static electricity is the buildup of electrical charge on objects.
Static electricity is the buildup of electrical charge on objects.
Eventually there will be an imbalance (unequal number of) electrons and protons in the object
Eventually there will be an imbalance (unequal number of) electrons and protons in the object
When this happens, there will be a sudden transfer of electrical energy between two objects. This is called static discharge
When this happens, there will be a sudden transfer of electrical energy between two objects. This is called static discharge
Lighting is a natural example of static discharge
Lighting is a natural example of static discharge
There are many different ways to "charge" an object
There are many different ways to "charge" an object
Charging Methods
Charging Methods
Atoms are naturally neutral (no charge)
Atoms are naturally neutral (no charge)
When an atom becomes positively charged, it means it LOST electrons. This means a cation has formed
When an atom becomes positively charged, it means it LOST electrons. This means a cation has formed
When an atom becomes negatively charged, it means it GAINED electrons. This means an anion has formed
When an atom becomes negatively charged, it means it GAINED electrons. This means an anion has formed
There are 3 main ways to charge an object:
There are 3 main ways to charge an object:
Friction
Friction
Charging by rubbing two objects together
Conduction
Conduction
Charging through direct contact
Induction
Induction
Charging without direct contact
(works with electric fields)
Helpful Videos
Helpful Videos
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