Keplers 3 laws of planetary motion include the law of Ellipses, the Law of Equal Areas, the law of Equal Harmonies.The law of Ellipses explains that planets are orbiting the sun in a path described as an Ellipse. The Law of Equal areas refers to the description to the speed at which any given planet will move while orbiting the sun. Lastly the Law of Equal Harmonies is the comparison of one planet’s orbital period and radius of orbit to those of another.
Newtons 3 laws of motion are very simple to explain. The first law is an object at rest will stay at rest while and object in motion will stay in motion at the same speed and same direction until stopped by an unbalanced force. For example a ball rolling North at 5 mph will continue to go North at that speed until it is stopped by an unbalanced force such as a wall or because of friction. The second law is that the net force of an object is the acceleration and mass of the object multiplied. If the mass of an object is 5 kg and the acceleration is 4m/s/s then the net force is 20N. N standing for newtons. The last law is that if one object exerts a force on another object, that second object has the same exertion. An example is if two people hold hands and lean backwards in opposite directions, then neither will fall over because the same force is being exerted from each person.
The solar nebula theory is the belief that our solar system was created from the collapse of a cloud of gas and dust (a nebula) about 4.6 billion years ago. The nebula begins to collapse when the gravitational forces trying to collapse it overcome the gas pressure trying to expand it. The nebula’s slow spinning becomes faster and faster as it collapses, creating a flattened circular shape with a spherical bulge in the middle. Instabilities in the collapsing, rotating cause local regions within the cloud to contract gravitationally. These local regions become the sun and the planets. This theory is also what we believe created gravity.“Gravity is a natural phenomenon by which all physical bodies attract each other. It is most commonly recognized and experienced as the agent that gives weight to physical objects, and causes physical objects to fall toward the ground when dropped from a height.”
The solar nebula theory is the belief that our solar system was created from the collapse of a cloud of gas and dust (a nebula) about 4.6 billion years ago. The nebula begins to collapse when the gravitational forces trying to collapse it overcome the gas pressure trying to expand it. The nebula’s slow spinning becomes faster and faster as it collapses, creating a flattened circular shape with a spherical bulge in the middle. Instabilities in the collapsing, rotating cause local regions within the cloud to contract gravitationally. These local regions become the sun and the planets. This theory is also what we believe created gravity.“Gravity is a natural phenomenon by which all physical bodies attract each other. It is most commonly recognized and experienced as the agent that gives weight to physical objects, and causes physical objects to fall toward the ground when dropped from a height.”
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