Electricity & Magnetismat Work

Electricity, Magnetism, & Motion

Chapter 3

Section 1

Energy

• The ability to move an object some distance

Electrical Energy

• Energy associated with electric currents

Mechanical Energy

• The energy an object has do to its movement or position

Converting Electrical Mechanical

• When a current-carrying wire is placed in a magnetic field, electrical energy is turned into mechanical energy

Electric Motors

• Uses electric current to turn an axle– Electrical Mechanical

• Fans• Blenders

Parts of a Motor

• Commutator • Reverses the flow of current through an electric motor

Parts of a Motor

• Brushes • Creates the two contact points with the commutator

Parts of a Motor

• Armature • Dozens or hundreds of loops of wire wrapped around an iron core