Physicists study the ways in which matter and energy interact. The nature of time, space, matter and the origin of the universe are topics that a theoretical physicist might investigate. These researchers spend some time working in offices, but also conduct research in laboratories
What is theoretical physics?
Physicists utilize theories to create predictions and then test those predictions using experiments. There are two primary theories of gravity in the case of a falling ball: Newtonian gravitation and General Relativity. Both explain how bodies interact with one another, although in slightly different ways.

Theoretical physicists invent and study theories. These theories are written in a mathematical language and use mathematical tools. The discipline of mathematical physics focuses on the more formal aspects of physics.
What does a theoretical physicist do?
These physicists research theoretical subjects ranging from subatomic particles to the development of the cosmos as a whole. These physicists devote a significant portion of their time to investigating physics ideas in order to expand the scientific knowledge base. Their work occasionally tries to explain the outcomes of tests that have yet to be explained.

Theoretical physicists also work to predict the properties of substances and materials. To conduct theoretical physicist research, these scientists often use high-tech equipment, such as lasers, electron microscopes and particle accelerators.
The opposite of theoretical physics might be considered to be applied physics, where scientists use their research for new practical developments, such as energy storage and navigation.
Tips to aid the understanding of theoretical physics for students
Enrol in as many theoretical physics classes as possible
The best way to prepare for theoretical physics is to enrol in as many science-related courses as possible. You can also enrol in classes that touch on math and physics courses. There is no better way to create a solid foundation than with as much theoretical physics as possible. Some essential topics you can include are geometry, algebra, astronomy and calculus.

Studying hard
Studying and successfully completing a theoretical physics course requires hard effort and self-discipline, yet the complexity may be a barrier for many students. If you opt to enroll in theoretical physics, you will only be able to complete the course by working hard.
There are many ways that studying can aid you, such as taking A level physics tuition and making friends whom you can improve together.
Participating in science clubs
Such extracurricular activities can help to expand your knowledge of theoretical physics. Whether in secondary school or university, seek the application forms and fill them up. This way, you will be able to connect with like-minded students who share the same passion as you. Once you’re a member of such a club, you can let your voice be heard by being an active member.
Conclusion
The main aim of physics is to understand the phenomena around us or discovering the laws of cause versus effect. Generally, theoretical physics uses theories in making predictions and carrying out experiments to test their predictions.