What are Positive and Negative Charges?

What are Positive and Negative Charges?
There are two kinds of electrical charge—positive and negative. An object that gains electrons has a negative charge. An object that loses electrons has a positive charge. Two charges of the same kind push each other apart. We say that they repel each other. Two charges of different kinds pull each other together. We say that they attract each other.

Try combing your hair quickly, and then holding the comb near your hair. Your hair stands on end! When you combed your hair, electrons rubbed off the hair onto the comb. This set up an electrical charge. The comb gained extra electrons and so had a negative charge. Your hair lost some electrons and so had a positive charge. Your hair rose towards the comb because the positive and negative charges attracted each other.

Read more

Art projects for kids – My sport poster 1. You need: 2.Glue photos of your favourite sport on a large sheet of paper.3.Cut out letters to give your poster a title.4.Write about a sports...
How to Make a Water Bike Water bicycles afford fine sport, and, like many another device boys make, can be made of material often cast off by their people as rubbish. The p...
Tangent Galvanometer – How to Make a Tangent... Secure a piece of wood 1/2 in. thick and cut out a ring with an outside diameter of 10-1/2 in. and an inside diameter of 9 in. and glue to each side t...
Sidereal Time And Solar Time – Why day lasts 24 ho... The day lasts 24 hours just because the humans wanted to share it in such manner. There is nothing in nature that is related to the hours, minute...
Close Menu