Physics Concepts

Front

Gravitational Field

Back

Always attractive; depends on mass and distance; force increases as the mass increases; force is strong when distance is small.

Front

Electric Field

Back

Surrounds every electric charge and exerts forces on other electric charges.

Front

Electric Force

Back

Attractive or repulsive force exerted by all charged objects on each other.

Front

Magnetic Field

Back

Surrounds a magnet and exerts a magnetic force on other magnets.

Front

Electromagnet

Back

Magnet created by wrapping a current carrying wire around an iron core.

Front

Insulator

Back

Material in which electrons cannot move easily.

Front

Conductor

Back

Material in which electrons can move or that transfers heat easily.

Front

Conduction

Back

Transfer of thermal energy by direct contact; occurs when energy is transferred by collisions between particles.

Front

Generator

Back

Device that uses a magnetic field to turn kinetic energy into electrical energy.

Front

Motor

Back

Device that transforms electrical energy into kinetic energy.