an object in motion

USAGE SUMMARY

The phrase "an object in motion" is correct and usable in written English.
It can be used in contexts discussing physics, movement, or metaphorical situations where something is actively progressing or changing. Example: "According to Newton's first law, an object in motion tends to stay in motion unless acted upon by an external force."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

24 human-written examples

The equation is simple: "An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force". In other words, hypergrowth starts by creating imbalance and putting things in motion.

Forbes

Think Newton's First Law of Motion: "An object at rest stays at rest and an object in motion stays in motion... .. Our bodies have to be activated consistently or they willdevelop cobwebs.

Huffington Post

His design views the car as an object in motion.

The New York Times

Capture the video of an object in motion, then tap to track the object automatically.

The Guardian

This video shows a highly cluttered scene with an object in motion.

Columbia University

How does one calculate the momentum of an object in motion?" Allow students to use a dictionary to check or clarify their knowledge.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

36 human-written examples

Spacewar began in January 1962 as a simple object-in-motion program, Mr. Graetz said, and by February had become a rudimentary game, including two ships, a supply of fuel and a store of torpedoes.

The New York Times - Tech

Indeed, Huygens too had employed this notion of static force in his Horologium Oscillatorium when he identified his centrifugal force with the tension in the string (or the pressure on a wall) retaining an object in circular motion, in explicit analogy with the tension exerted by a heavy body on a string from which it is dangling.

SEP

Is the moving item shown in Figure 6 a phenomenal feature of a conscious state, or is it a physical object in motion through physical space?

SEP

At high speeds, one perceives a blurred streak rather than a definite object in motion.

Britannica

Note that static friction - the friction that results when trying to put a stationary object into motion - is different than kinetic friction - the friction that results when trying to keep a moving object in motion.

WikiHow

Expert writing Tips

Best practice

When discussing Newton's laws or physics, "an object in motion" is a precise and appropriate term. In other contexts, consider using simpler alternatives like "a moving object".

Common error

Avoid using "an object in motion" in everyday language where it sounds overly formal or scientific. Opt for more common phrases like "something moving" or "a moving thing" for clarity and naturalness.

Linguistic Context

The phrase "an object in motion" primarily functions as a noun phrase, often serving as the subject or object of a sentence. Ludwig's examples show its use in describing physical laws and phenomena. The phrase accurately identifies something in motion to further analyze the dynamics and acting forces.

Expression frequency: Common

Frequent in

News & Media

40%

Science

30%

Academia

15%

Less common in

Wiki

9%

Encyclopedias

3%

Formal & Business

3%

Ludwig's WRAP-UP

The phrase “an object in motion” is a noun phrase primarily used in scientific, academic, and news contexts to describe something currently moving. As Ludwig AI explains, it is grammatically correct and frequently used, especially when referencing physical laws like Newton's first law of motion. While it can be used metaphorically, simpler alternatives like "a moving object" may be more suitable for everyday language. When writing, avoid overusing this phrase in non-technical contexts and ensure accuracy in its application to maintain clarity and precision.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a moving object

Replaces the more formal "object in motion" with simpler language.

a mobile entity

Highlights the capability of the object to move.

an item in transit

Emphasizes the act of going from one place to another.

a traveling article

Highlights the movement of the object from one point to another.

an advancing body

Emphasizes forward movement or progression.

a propelled entity

Highlights the force causing the movement.

something in progress

Shifts the focus from physical movement to ongoing action.

a shifting subject

Implies a change in position or state.

a dynamic element

Focuses on the active and changing nature of the object.

a kinetic form

Connects the object to the concept of kinetic energy.

FAQs

What does "an object in motion" mean in physics?

In physics, "an object in motion" refers to any object that is currently moving, often in the context of discussing inertia and Newton's laws of motion. It signifies that the object possesses kinetic energy and is not at rest.

Which is a better phrase to use, "a moving object" or "an object in motion"?

While both phrases are grammatically correct and largely synonymous, "an object in motion" is more commonly used in formal or scientific writing, while "a moving object" is more common in everyday language.

Can "an object in motion" be used metaphorically?

Yes, "an object in motion" can be used metaphorically to describe something that is actively progressing or changing, such as a project or a business. For example, one could say, "Once the project became an object in motion, it was hard to stop its momentum."

What are some synonyms for "an object in motion"?

Some synonyms for "an object in motion" include "a moving object", "an item in transit", or "a dynamic element", depending on the specific context and nuance you want to convey.