Energy and Electricity

Energy and Electricity:

Electrical Charges:

Electric current is the flow of electric charge. Some insulating materials become electrically charged when they are rubbed together. A substance that gains electrons becomes negatively charged, while a substance that loses electrons becomes positively charged.

Charges that are the same, (eg positive and positive) repel, while unlike charges, (eg positive and negative) attract. Charged objects are able to attract small uncharged objects towards them, such as pieces of paper.

Attraction:

If two charged objects are brought close together they are either attracted towards each other, or they are repelled away from each other. If they have the same type of charge they will repel and push away from each other. Two negative charges placed near each other will repel each other, and so will two positive charges.

If they have opposite charges they will attract each other. When a positive charge and a negative charge are placed near each other they will attract each other.

Electrically charged objects can attract small uncharged objects that…