MCAT Physical

A comprehensive introduction to the fundamental concepts of physics as tested on the MCAT, including mechanics, thermodynamics, electricity, and more.

Kinematics and MotionForces and Newton's LawsWork, Energy, and PowerThermodynamics and Heat
Electricity and MagnetismFluids and PressureWaves, Sound, and LightAtomic and Nuclear Physics
Medical Imaging and DiagnosticsBiomechanics and Human MovementEnergy Use and Everyday Technology
Mastering MCAT Physics QuestionsTime Management and Guessing Smart
Kinematics and Motio...Forces and Newton's ...Work, Energy, and Po...Thermodynamics and H...Electricity and Magn...Fluids and PressureWaves, Sound, and Li...Atomic and Nuclear P...Medical Imaging and ...Biomechanics and Hum...Energy Use and Every...Mastering MCAT Physi...Time Management and ...
Advanced Topics

Electricity and Magnetism

The Forces That Power the Modern World

Electricity and magnetism are two sides of the same coin, describing how charged particles interact and create fields.

Key Concepts

  • Coulomb's Law: The force between two charges.
  • Ohm's Law: Relationship between voltage, current, and resistance (\( V = IR \)).
  • Magnetic Fields: Created by moving charges (currents).

Real-World Wonders

Every time you use a phone, a computer, or even your heart beats, electricity and magnetism are at work.

MCAT Focus

Know how circuits work (series and parallel), the right-hand rule for magnetic fields, and the basic math of electric forces.

Applications

  • MRI machines use magnetic fields to image the body.
  • Defibrillators use electric pulses to restart the heart.

Key Formula

\[V = IR\]

Examples

  • A defibrillator delivering a lifesaving shock.

  • Using a magnet to move iron filings on paper.

In a Nutshell

Electricity and magnetism explain how charges and currents interact to power technology and life.

Key Terms

Current
The flow of electric charge.
Voltage
The potential difference that drives current.
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Fluids and Pressure