Electric Charge & Static Electricity

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Presentation transcript:

Electric Charge & Static Electricity Electricity & Magnetism Chapter 2.1 Pages 46-53

Electric Charge All objects are made up of atoms Atoms consist of 3 parts Protons Electrons Neutrons

Electric Charge Ben Franklin described each part of the atom as having an electric charge Protons have a positive charge (+) Electrons have a negative charge (-) Neutrons have a neutral charge (neither + nor - )

Repel & Attract Charges that are the same repel one another or push each other away Charges that are opposite attract one another or pull each other together The same rules apply to magnets

Electric Fields The force of electric charges can be felt for a distance An Electric Field is the area of force surrounding a charge Charged particles placed in an electric field will either repel or attract.

Electric Fields

Static Electricity Objects become charged by gaining or losing electrons Protons are bound to the atom tightly Static Electricity is when charges build up on an object Static means fixed or unmoving Static charges do not flow

What to Work On DUE: Friday, 3/16 Section 2.1 Review Questions Page 53, Questions 1-4 and 6 DUE: Friday, 3/16

Atoms are made of 3 parts. Which of these is NOT one of them? 1 Proton 2 Electron 3 Positive / Negative 4 Neutron

Put the following parts in the correct order: Negative, Neutral, Positive. 1 Proton, Neutron, Electron 2 Electron, Proton, Neutron 3 Neutron, Electron, Proton 4 Electron, Neutron, Proton

Which of these statements is TRUE? 1 Particles with the same charge repel 2 Particles with the same charge attract 3 Particles with opposite charges repel

Transferring Charge Charges can be moved from one object to another in 3 different ways: Friction moves electrons by rubbing two objects together Conduction transfers electrons from a charged object through touch Induction is when electrons move from an object because of electric fields.

Static Discharge When a negatively charged object and a positively charged object are brought together, electrons move until both have the same charge Static Discharge: Two charged objects will create a balanced charge.