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Chapter 16 Section 1 Electrical Charge and Force Electric Force • Electric force is the force of attraction or repulsion between objects due to charge. • The electric force at the atomic and molecular level is responsible for most of the common forces we can observe. • The electric force is also responsible for effects that we can’t see. • Electric force depends on charge and distance. • The electric force between two objects is proportional to the product of the charges on the objects. • The electric force is inversely proportional to the square of the distance between two objects. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 16 Section 1 Electrical Charge and Force Electric Force, continued • Electric force acts through a field. • An electric field is a region in space around a charged object that causes a stationary charged object to experience an electric force. • One way to show an electric field is by drawing electric field lines. • Electric field lines point in the direction of the electric force on a positive charge. • The electric field lines around a positive charge point outward. • The electric field lines around a negative charge point inward. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 16 Section 1 Electrical Charge and Force Electric Field Lines Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 16 Section 1 Electrical Charge and Force Electric Field Lines Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 16 Section 1 Electrical Charge and Force Electric Force, continued • Electric field lines never cross one another. • Field lines show both the direction of an electric field and the relative strength due to a given charge. • More lines are drawn for greater charges to indicate greater force. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 16 Section 1 Electrical Charge and Force Electric Fields and Test Charges Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.