- Cinematics would include the movement equations
- Kinetic energy -> Ek=1/2mv(squared)
- Potential energy -> Ep=mgh (obtaining position)
- m=mass
- v=velocity
- h=height
- g=gravity
- Dynamics would include Newton and Kepler's explanations
- Newton's laws
- Every object in a state of motion will remain in motion unless acted on by an outside force (inertia).
- Acceleration is produced when a force acts on a mass (momentum).
- For every action there is an equal and opposite reaction.
- Kepler's laws
- The orbit of the planets are elliptical, with the sun at its focus of the ellipse
- The line joining the planets to the sun sweeps out equal areas in equal times as the planet travels around the planets ellipse
- d(squared)=T(cubed) when d is the distance between the sun and a planet and T is the period of time
There are seven fundamental units within physics that apply to more complex units that branch out from such fundamental ones. These Fundamental units consist of -
- Length -> meter -> (m)
- Mass-> Kilogram -> (kg)
- Time-> second -> (s)
- Temperature -> Kelvin degree -> ("degree" k)
- Electric current -> ampere -> (A)
- Light intensity -> candela -> (cd)
- substance -> mol -> (mol)
*Conservation Energy Principle*
- Energy can not be created or destroyed, only transformed.
This video clearing displays the principle for the conservation of energy.
Types of Energy
- caloric -> energy generated by the food/nutrients ingested.
- electrical -> presence and flow of electrical charge carried out by an electrical current.
- chemical -> energy found in covalent bonds between atoms within a molecule.
- hydraulic -> (hydroelectric) produced by high volumes of moving water.
- wind -> the flow of wind pulls turbines storing energy from the movement.
- radiant -> (also refers to electromagnetic waves) transmission of power from one location to another.
- nuclear -> originates from the splitting of uranium by fission. The fission process is then used to generate heat from steam, then the steam is used to pull a turbine which generates energy.
- mechanical -> sum of energy in a mechanical system (kinetic and potential energy). All objects have mechanical energy if they are in motion or at a position relative to 0 potential energy.
Momentum
Momentum states that any object thats is moving obtaining mass has momentum, often defined as a "mass in motion". Momentum depends on mass and velocity, therefore making the equation to find momentum p (momentum)=m x v.
- This video describes in depth how momentum functions.
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