Equilibrium in Physics

Friction and external forces, such as wind and vibrations, can disrupt equilibrium by creating additional forces that need to be balanced.

Static equilibrium refers to an object at rest with no net forces acting on it, while dynamic equilibrium involves objects in motion with balanced forces.

Stable equilibrium occurs when an object returns to its original position after being displaced; an example is a ball in a bowl.

<p>Unstable equilibrium is when an object, upon displacement, moves further away from its original position; for example, a pencil balanced on its point.</p> Signup and view all the answers

<p>Newton's First Law states that an object remains at rest or in uniform motion unless acted upon by a force, while the Third Law dictates that for every action, there is an equal and opposite reaction, maintaining balance.</p> Signup and view all the answers

<p>Centripetal acceleration in a satellite's orbit balances gravitational pull, creating a state of dynamic equilibrium.</p> Signup and view all the answers

<p>Biological organisms maintain homeostasis, a form of equilibrium, to regulate internal conditions like temperature and pH necessary for survival.</p> Signup and view all the answers

<p>Monitoring cargo weight ensures that a ship remains in stable equilibrium, preventing capsizing due to overloading.</p> Signup and view all the answers

<p>Potential energy remains constant without conversion to kinetic energy.</p> Signup and view all the answers

<p>In dynamic equilibrium, total energy remains constant while the object is in motion.</p> Signup and view all the answers

<p>The object returns to its original position after being disturbed.</p> Signup and view all the answers

<p>An unstable equilibrium is characterized by an object balanced at a high potential energy point, easily disturbed.</p> Signup and view all the answers

<p>The gravitational force acting on an object directly affects its equilibrium state.</p> Signup and view all the answers

<p>An object's geometry affects its center of gravity and subsequently its stability.</p> Signup and view all the answers

<p>Air resistance affects the terminal velocity of objects in motion.</p> Signup and view all the answers

<p>It represents the lowest potential energy point, favoring stability.</p> Signup and view all the answers

<p>Static equilibrium is defined as a state where all forces acting on an object are balanced and there is no movement. An example is a book resting on a table.</p> Signup and view all the answers

<p>Dynamic equilibrium occurs when an object moves at a constant velocity in a straight line with balanced forces acting on it. The net force is still zero, which means there is no acceleration.</p> Signup and view all the answers

<p>Stable equilibrium occurs when an object returns to its original position after being slightly displaced, while unstable equilibrium means the object will continue to move away from its original position when displaced.</p> Signup and view all the answers

<p>Two factors that can affect equilibrium are the magnitude of the forces acting on an object and the points where these forces are applied. Additionally, the object's mass and shape also influence its stability.</p> Signup and view all the answers

<p>Newton's first law states that an object at rest stays at rest, and an object in motion continues in motion unless acted upon by a net force, which directly relates to the conditions for equilibrium. In equilibrium, the net force is zero, satisfying the first law.</p> Signup and view all the answers

<p>Net torque in equilibrium is the sum of all torques acting on an object, which also must equal zero for the object to be in a stable position. This means that there are no unbalanced torques to cause rotational motion.</p> Signup and view all the answers

<p>An example of dynamic equilibrium is a car cruising at a constant speed on a straight, flat road, where the forces of propulsion and friction are balanced.</p> Signup and view all the answers

<p>Stability in equilibrium refers to an object's ability to maintain its position and orientation over time, resisting disturbances and returns to equilibrium after being disturbed.</p> Signup and view all the answers