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関連する概念動画

Momentum And Radiation Pressure01:20

Momentum And Radiation Pressure

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An object absorbing an electromagnetic wave would experience a force in the direction of propagation of the wave. This force occurs because electromagnetic waves contain and transport momentum. The force accounts for the wave's radiation pressure exerted on the object. Maxwell's prediction was confirmed in 1903 by Nichols and Hull by precisely measuring radiation pressures with a torsion balance. The measuring instrument had mirrors suspended from a fiber kept inside a glass container.
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Linear Momentum00:55

Linear Momentum

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The term momentum is used in various ways in everyday language, most of which are consistent with the precise scientific definition. Generally, momentum implies a tendency to continue on course—to move in the same direction; we tend to speak of sports teams or politicians gaining and maintaining the momentum to win.  Momentum is also associated with great mass and speed and is often considered when talking about collisions. For example, when rugby players collide and fall to the...
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Force and Momentum01:17

Force and Momentum

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Force and momentum are intimately related. Force acting over time can change momentum, and Newton's second law of motion can be stated in its most broadly applicable form in terms of momentum. Momentum can be applied to systems where the mass is changing, such as rockets, as well as to systems of constant mass. Also, momentum continues to be a key concept in the study of atomic and subatomic particles in quantum mechanics. One can consider systems with varying mass in some detail; however, the...
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Impulse-Momentum Theorem00:49

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The total change in the motion of an object is proportional to the total force vector acting on it and the time over which it acts. This product is called impulse, a vector quantity with the same direction as the total force acting on the object.
By writing Newton's second law of motion in terms of the momentum of an object and the external force acting on it, and simultaneously using the definition of the impulse vector, it can be shown that the total impulse on an object is equal to its...
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Conservation of Linear Momentum for a System of Particles01:28

Conservation of Linear Momentum for a System of Particles

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In the dynamic realm of billiards, a fascinating interplay of forces governs the motion of cue balls and stationary balls. When the cue ball collides with a stationary ball, linear momentum is exchanged. The cue ball imparts a fraction of its linear momentum to the stationary ball, causing the cue ball to decelerate while initiating the motion of the stationary ball.
The impulsive force at play during this interaction is of extremely short duration, rendering its impulse negligible. When...
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Principle of Angular Impulse and Momentum01:23

Principle of Angular Impulse and Momentum

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The angular impulse and momentum principle provides insights into how forces applied at a distance from an object's rotational axis influence its angular velocity. It builds upon the crucial relationship between the moment of force and angular momentum. By integrating this equation, substituting the limits for the initial and final times, a comprehensive expression representing the angular impulse and momentum principle is derived.
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関連する実験動画

Updated: Feb 25, 2026

An Emerging Target Paradigm to Evoke Fast Visuomotor Responses on Human Upper Limb Muscles
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代表的な勢いは,目標を超えていくのか?

Timothy L Hubbard1, Susan E Ruppel2

  • 1Department of Psychology, Arizona State University, Tempe, AZ, 85281, USA. timothyleehubbard@gmail.com.

Attention, perception & psychophysics
|February 23, 2026
PubMed
まとめ
この要約は機械生成です。

動く物体は,他の刺激の位置感を変化させることができる. この研究では,移動するオブジェクトの知覚された運動である表現モメンタムが,近くの他のオブジェクトの位置判断に影響を与えるために拡張できることを発見しました.

キーワード:
認識された空間のアニソトロピー性.判断された場所での移転.ポストディキションは,ディキション後のものです.代表的なモメンタムが生まれました.シーンの表現です.タンデム・エフェクトという効果があります.

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関連する実験動画

Last Updated: Feb 25, 2026

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科学分野:

  • 認知心理学とは,認知心理学である.
  • 視覚的知覚 視覚的知覚
  • 運動知覚 運動知覚

背景:

  • オブジェクトの位置の知覚は,ナビゲーションとインタラクションに不可欠です.
  • 以前の研究では,動きが視覚的知覚にどのように影響するかを調査しましたが,一つのオブジェクトの動きが別のオブジェクトの知覚された位置に影響する程度は不明です.

研究 の 目的:

  • 一つの視覚的標的の動きが,別の刺激の位置感知に影響するかどうかを調査する.
  • クロスオブジェクトの位置判断における表現のモメンタムの役割を調査する.

主な方法:

  • 4つの実験は,連続して同時に表示された視覚的標的を用いて行われました.
  • 参加者は,さまざまな運動条件 (同じ/反対方向,同じ/異なる経路) の下で,静止している物体と動いている物体の位置を判断した.
  • 判断された場所の位置は,標的の動きに関連した移動を分析した.

主要な成果:

  • 静止したオブジェクトの判断された位置は,その後の移動対象の方向に移動されました.
  • 移動の効果は,ターゲットが連続的に,または同時に,同じ,または異なる経路に沿って移動したかどうかによって異なります.
  • タンデム効果の新しい解釈が提案され,それを表現運動量と前/後縁のアニソトロピック移動と関連付けました.

結論:

  • この発見は,表現のモメンタムが移動する標的を超えて広がる可能性があるという仮説を裏付けている.
  • オブジェクトの動きは,特にターゲットが同じ経路に沿って移動するとき,他の刺激の知覚された位置に大きな影響を与えます.
  • この研究は,視覚における運動知覚と空間表現に関する新しい洞察を提供します.