inertial frame
- noun
- /ɪˈnɜrʃəl freɪm/
- Specialized
:
sistema inercial
- If you throw a ball in an inertial frame, it will continue to move in a straight line at a constant speed.
- Earth-centered inertial frame
If you are at any fixed point in an inertial frame, you don't have to be at O.
- If you are at any fixed point in an inertial frame, you don't have to be at O.
- So all this discussion about energy, what thing when you compute the Lagrangian you're doing in an inertial frame, right?
Examples
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The rotating Earth is not an inertial frame; it is impossible to synchronize clocks on Earth purely by this method.
Academic text (1996) -
As a result of the correction, all clocks tell time in the same inertial reference frame: the Earth-centered inertial frame.
Academic text (1996) -
This works only if the clocks are in an inertial frame.
Academic text (1996) -
If you are at any fixed point in an inertial frame, you don't have to be at O.
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So one can use the inertial frame as a reference to reduce the driving accelerations.
Academic text (1999) -
So we will call this a global inertial frame, an inertial frame that is good everywhere.
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The seismic noise, by contrast, is motion relative to the inertial frame.
Academic text (1999) -
This idea for an Earth-centered inertial frame was adopted for worldwide time synchronization and eventually for the GPS, but it was not without controversy.
Academic text (1996) -
So we have this particle rotating and we have an inertial frame, and I'm going to compute the angular momentum.
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But if clock synchronization is done in the Earth-centered inertial frame, the Sun's gravity is almost exactly canceled by another effect.
Academic text (1996)
Synonyms
A frame where objects stay still or move straight at constant speed unless a force acts on them
Surface Forms
Morphology
The phrase is a straightforward adjective+noun composition: an 'inertial' property applied to a 'frame' yields a frame characterized by inertia. Given knowledge of both constituents, the specialized definition (a reference frame in which objects maintain uniform motion unless acted on) is directly inferable, so the expression is compositionally transparent.
Etymology
Inertial frame: The name mixes inertial (from 'inert', meaning not changing) and frame (a viewpoint or box you look from). Imagine you are in a smooth-moving train where a ball stays still or keeps moving steadily when nothing pushes it; that viewpoint is an inertial frame, so the phrase means 'a point of view where objects keep doing the same thing unless pushed'.
