Please enable JavaScript.
Coggle requires JavaScript to display documents.
Linear Kinetics and Newton's Laws - Coggle Diagram
Linear Kinetics and Newton's Laws
Linear Kinetics
Force:
A force changes or tries to change the motion of the objects.
Force is simply the mechanical interaction that goes on between two objects or bodies.
It may involve contact (such as friction) or it may act at a distance (such as gravity).
Gravity:
Building on the work of previous scientists such as Galileo, Kepler and Halley, he realized that there is an attractive force between objects which is related to their masses (the amount of material in them) and inversely proportional to the square of the distance between them.
This force causes the elliptical orbits of the planets around the sun, but also is the reason for the attraction between the earth and all bodies and objects near to it or on its surface.
Mass and Weight
This means that on the moon, the mass of an object is the same as on the earth, but its weight is less (because the moon’s gravity is less than that of the earth).
Because the force of gravity always acts between an object and the earth and is directed towards the center of the earth, there is always a force acting vertically on us.
Weight is the effect of the force of gravity on mass.
Netowns Laws
First Law:
This means that on the moon, the mass of an object is the same as on the earth, but its weight is less (because the moon’s gravity is less than that of the earth).
Because the force of gravity always acts between an object and the earth and is directed towards the center of the earth, there is always a force acting vertically on us.
Weight is the effect of the force of gravity on mass.
Second Law:
Thus a body or object’s change of motion is directly related to the size of the (unbalanced) force causing the change and will change motion in the direction of the applied force.
Newton’s second law of motion relates the change in motion (acceleration) to the force causing that change.
So Newton’s second law of motion could be rewritten as F = m (v2u) / t, where v and u are final and initial velocities and t is the time for the velocity change.
It can be stated as: “The acceleration (for a body/ object of constant mass) is proportional to, and in the same direction as, the unbalanced force applied to it.” This law is sometimes known as the law of acceleration. The change in motion is also inversely related to the mass of the object.
Third Law:
This law is sometimes phrased as “for every action there is an equal and opposite reaction.” There are several important aspects to the understanding of this law: Firstly, the two forces are on two different bodies or objects (not on the same body/ object).
It can be stated as: “When one body or object applies a force to another, the second body or object will apply a force equal in size but opposite in direction to the first body or object.” This law is often called the law of reaction.