PE Definition Stored Energy Energy due to position.

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Presentation transcript:

PE Definition Stored Energy Energy due to position

PE Formula The formula for calculating potential energy is mgh. The three factors that determine the amount of potential energy in an object are mass, gravitational acceleration, and height of an object.

PE Measurements PE = Joules Mass = kg Weight=Newtons Gravitational pull = m/s2 Height = m

Potential Energy = Mass x 9.8 m/s2 x Height PE Formula Potential Energy = Mass x 9.8 m/s2 x Height Gravitational PE = WxH

PE Info: PE = mass x gravitational acceleration (9.8m/s2) x height OR Gravitational PE= Weight X Height Energy= joules Weight= Newton Mass= kilograms Velocity= m/s Gravitational acceleration= (9.8 m/s2)

KE Definition Kinetic energy is the energy of motion, observable as the movement of an object, particle, or set of particles.

KE Formula KE= ½ . M . (v2 ) Two factors that determine KE in an object are Mass and Velocity *reminder: velocity = speed

KE Measurements Energy= joules Weight= Newton Mass= kilograms Velocity= m/s Gravitational acceleration= (9.8 m/s2)

KE If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared. Kinetic energy is usually measured in units of Joules (J); one Joule is equal to 1 kg m2 / s2

KE = ½ m v (2) PE = mass x gravitational acceleration (9.8m/s2) x height or weight x height

Energy = joules Weight = Newtons Mass= kilograms Velocity = m/s Gravitational acceleration = 9.8 m/s2