The Ordered Universe. Physical events  Predictable  Quantifiable Without the predictability of physical events the scientific method could not proceed.

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Presentation transcript:

The Ordered Universe

Physical events  Predictable  Quantifiable Without the predictability of physical events the scientific method could not proceed.

The Ordered Universe Stonehenge  A Giant Calendar  Built to Keep Track of Time  Began in 2800 BC, Still Accurate Today

The Ordered Universe As seen by:  Ptolemy – 2 nd century  Copernicus - 16th century  Brahe – late 16th century  Kepler – early 17th century  Galileo – early 17th century Sun Earth

The Ordered Universe Galileo “The Father of Experimental Science”

The Ordered Universe Experimentation collecting data using instruments and mathematical calculations

The Ordered Universe Motion   Velocity – speed in a specific direction  Acceleration – rate of change in velocity

The Ordered Universe Newton’s Laws of Motion  1 st Law  2 nd Law  3 rd Law

The Ordered Universe 1 st Law of Motion – a moving object will continue moving in a straight line at a constant speed, and a stationary object will remain at rest, unless acted upon by an unbalanced force

The Ordered Universe 2 nd Law of Motion – the acceleration produced on a body by a force is proportional to the magnitude of the force and inversely proportional to the mass of the object

The Ordered Universe 3 rd Law of Motion – for every action there is an equal and opposite reaction

The Ordered Universe Gravity = our #1 force “an attractive force between any 2 objects in the universe which is proportional to the masses of the objects and inversely proportional to the square of the distance between them”

The Ordered Universe Weight force of gravity on an object in a particular place can change Mass amount of actual matter an object has stays constant vs.

The Ordered Universe Gravity  “G” – universal constant, applies to any 2 masses in the universe  “g” – gravity on the Earth’s surface only Question: If we drop two objects from the same distance above the surface of the Earth, which will fall faster, the heavier object or the lighter object?