Computing & Engineering

Physics major, explained.

Use mathematics and experiments to understand how the physical world behaves.

Physics explores how matter, energy, motion, fields, waves, space, measurement, and mathematical models describe physical systems. Students commonly study Classical mechanics, Electricity and magnetism, Quantum physics, Thermodynamics, and Experimental methods. Programs vary by college, but the field generally combines foundational ideas with applied work so students can investigate meaningful questions, make informed decisions, and communicate what they discover.

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You might enjoy this if

Notice what feels familiar.

You keep asking what basic rule explains what you observe.

You enjoy challenging mathematics connected to experiments and models.

You can stay with a problem even when the answer is not immediately visible.

The study experience

What the work may feel like.

Programs differ by college. These labels describe common areas of emphasis, not a score or universal rating.

Reading Central
Writing Frequent
Quantitative work Central
Labs or hands-on work Central
Design and making Regular
People and collaboration Regular
Questions you may keep asking

Which physical principles govern this system?

What prediction does the model make and how could it be tested?

Where do measurement limits or simplifying assumptions affect the conclusion?

Classical mechanicsElectricity and magnetismQuantum physicsThermodynamicsExperimental methods

What can you do with this major?

One major. More than one direction.

These are example connections, not guaranteed outcomes. Many careers welcome more than one major, and some require additional education or licensure.

Research Physicist

Designs experiments or models to investigate physical systems and fundamental questions.

Applied Scientist

Uses physics-based analysis and experimentation to improve technology, measurement, or products.

Optical Engineer

Develops systems that generate, control, detect, or use light for practical applications.

Technical Data Analyst

Applies quantitative modeling, computation, and careful measurement to complex datasets.

Physics can support several career directions, and employers may welcome graduates from related fields. Practical experience, internships, projects, and additional credentials can matter alongside the degree.

Try it before college

Projects that make Physics more real.

Reading helps you understand a field. A Compass project helps you discover whether you enjoy doing the work.

Each project includes a step-by-step plan, custom AI prompts, reflection guidance, and a finished creation for the student’s portfolio. See how Compass works
Compass project 20–42 hours

Put a Popular Myth in the Lab

Take one claim everyone repeats and design a fair test instead of arguing from confidence.

You will create
myth-testing experiment and science communication package
Build this with Compass
Compass project 15–35 hours

Think Like a Scientist

Choose an everyday mystery, collect evidence, and explain what the data suggests.

You will create
Everyday Science Investigation Case Study
Build this with Compass
Compass project 30–56 hours

Build a Sensor That Notices What Humans Miss

Give a small device the ability to detect a pattern people cannot monitor continuously.

You will create
working sensor prototype and validation report
Build this with Compass

Keep exploring

Related majors worth comparing.

Sources and important context

Compass presents a curated collection of 100 widely studied and commonly searched undergraduate majors. The collection is not a statistical ranking. Major names and CIP connections follow common US college usage and the NCES Classification of Instructional Programs. Study patterns are editorial summaries of common program structures and vary by college. Career directions are examples, not guaranteed outcomes. Students should compare actual curricula, admission rules, accreditation, and licensing requirements at colleges they are considering.

NCES CIP codes: 40.0801

  • NCES Classification of Instructional ProgramsNational Center for Education Statistics. Official US taxonomy for fields of study and instructional programs.
  • Field of DegreeUS Bureau of Labor Statistics. Federal career exploration resources organized around broad college fields.
  • O*NET OnLineUS Department of Labor. Detailed descriptions of occupations, tasks, knowledge, skills, and work activities.
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