Charge

I was once given some balloons by the local shop. When I tried to do electrostatics experiments with them they didn't work.


Summary

Charged balloons

Like charges repel and opposite charges attract. A balloon isn't normally charged; you have to rub it. This adds negative charge to the surface of the balloon.

Neutral objects can have a charge induced within them if a charged object comes nearby.

Atomic charge

If matter can be charged and matter is made of atoms, then atoms must contain charge.

  • Electrons are negative
  • The nucleus is positive

Some materials contain electrons that are easy to remove, others like to hold onto them.

Test Yourself

Use quizzes to practise application of theory. 


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How much of Charge have you understood?