Question

Сила- это физическая величина, являющаяся причиной 1 изменении скорости 2 деформации 3 изменение скорости и деформации 4 изменение плотности

Answer 1

Сила- это физическая величина, являющаяся причиной изменение скорости и деформации

Answer 2

Understanding the Concept of Force

Force is a physical quantity that is the cause of 1. changes in velocity and 2. deformation. It is a vector quantity, meaning it has both magnitude and direction. The standard unit of force is the newton (N), named after Sir Isaac Newton, and is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.

In the context of physics, force is often represented by the symbol "F" and is calculated using the formula:

F = m * a

Where: - F is the force - m is the mass of the object - a is the acceleration

The gravitational force, denoted by G, is a fundamental force in nature and is responsible for the attraction between objects with mass. It is described by Newton's law of universal gravitation, which states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

The formula for the gravitational force between two objects is given by:

F = G * (m1 * m2) / r^2

Where: - F is the gravitational force - G is the gravitational constant - m1 and m2 are the masses of the objects - r is the distance between the centers of the masses

The gravitational constant, denoted by G, has a value of approximately 6.672 x 10^-11 N m^2/kg^2.

3. Changes in density are not directly caused by force, but rather by factors such as pressure and temperature. When a substance undergoes a change in density, it is typically due to a change in its mass or volume, which can be influenced by external factors like temperature and pressure.

In summary, force is a fundamental concept in physics, responsible for changes in velocity and deformation, and is particularly evident in the gravitational force between objects with mass. It is important to note that changes in density are not directly attributed to force, but rather to other factors such as pressure and temperature.