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

Waves, Sound, and Light

The Physics of Vibrations and Information

Waves carry energy from one place to another—whether it's sound in the air or light across space.

Types of Waves

  • Mechanical Waves: Need a medium, like sound in air.
  • Electromagnetic Waves: Travel through a vacuum, like light.

Important Features

  • Frequency, wavelength, and amplitude.
  • Interference and resonance (think musical instruments).

Real-World Relevance

  • Ultrasound uses sound waves to look inside the body.
  • Fiber optics use light waves to send data.

MCAT Focus

Know Doppler effect, reflection, refraction, and how lenses and mirrors work!

Examples

  • Analyzing an ultrasound image.

  • Describing why a siren sounds higher-pitched as it approaches you.

In a Nutshell

Waves transfer energy and information, showing up in everything from music to medicine.

Key Terms

Frequency
The number of wave cycles per second.
Doppler Effect
The change in frequency due to relative motion.
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Atomic and Nuclear Physics
Waves, Sound, and Light - MCAT Physical Content | Practice Hub