newton
word
Definition
A 'newton' is the standard unit of force in the International System of Units (SI), defined as the force needed to accelerate a 1 kg mass by 1 meter per second squared. It is also used as a surname, most famously by physicist Isaac Newton.
Usage & Nuances
In science, 'newton' always refers to the unit of force, symbolized as N. It is a formal, technical term, not used in everyday conversation. As a surname, it’s capitalized: 'Sir Isaac Newton'. Never use 'newton' for weight or mass—it is specifically a unit of force.
Example Sentences
The force of gravity on Earth is about 9.8 newtons for every kilogram of mass.
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The scale shows a force of five newtons when I press on it.
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Scientists measure even very small forces in newtons to keep things consistent.
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One newton is the force needed to move a 1 kg object at 1 meter per second squared.
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Isaac Newton discovered the laws of motion and gravity.
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If you’re into physics, you’ve probably heard of Newton and his famous apple story.
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