A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe.

What do physicists actually do?

Physicists plan and conduct scientific experiments and studies to test theories and to discover properties of matter and energy. Physicists and astronomers study the interactions of matter and energy. Theoretical physicists and astronomers may study the nature of time or the origin of the universe.

What does a physicist do daily?

A Day in the Life of a Physicist. The physicist deals with all aspects of matter and energy. ... Experimental physicists use laboratory experiments to verify these theoretical predictions or develop devices and instruments. Physicists tend to be curious, creative, and dedicated.