plural in form but singular or plural in construction
1
: a science that deals with matter and energy and their interactions
2
a
: the physical processes and phenomena of a particular system
b
: the physical properties and composition of something
Examples of physics in a Sentence
Recent Examples on the Web
Experiment with wave physics in a bottle or a tray, or bring different floating and sinking toys to learn about density.
—
Heather Wence, The Orlando Sentinel, 10 July 2025
The color is down to something called Rayleigh scattering — the same physics that explains why a sunset looks orange.
—Jamie Carter, Forbes.com, 10 July 2025
The other five Nobel Prize categories are physics, chemistry, physiology or medicine, literature, and the Sveriges Riksbank Prize in economic sciences.
—Kathryn Palmer, USA Today, 9 July 2025
Julia will be studying physics and wants to pursue a science career.
—News Release, San Diego Union-Tribune, 7 July 2025
See All Example Sentences for physics
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Heather Wence, The Orlando Sentinel, 10 July 2025
The color is down to something called Rayleigh scattering — the same physics that explains why a sunset looks orange.
—Jamie Carter, Forbes.com, 10 July 2025
The other five Nobel Prize categories are physics, chemistry, physiology or medicine, literature, and the Sveriges Riksbank Prize in economic sciences.
—Kathryn Palmer, USA Today, 9 July 2025
Julia will be studying physics and wants to pursue a science career.
—News Release, San Diego Union-Tribune, 7 July 2025
See All Example Sentences for physics
Cite this Entry
“Physics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/physics. Accessed 23 Jul. 2025.
Copy CitationKids Definition
physics
noun
phys·ics
ˈfiz-iks 
1
: a science that deals with matter and energy and their actions upon each other in the fields of mechanics, heat, light, electricity, sound, and the atomic nucleus
2
: physical composition, characteristics, or processes
the physics of sound
Medical Definition
physics
noun, plural in form but singular or plural in construction
phys·ics
ˈfiz-iks
: a science that deals with matter and energy and their interactions in the fields of mechanics, acoustics, optics, heat, electricity, magnetism, radiation, atomic structure, and nuclear phenomena
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