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Work Energy Momentum

QuestionAnswer
Work (Force * distance) along the direction of a force. Measured in Joules.
Potential Energy Energy of interaction. Measured in Joules.
Gravitational Potential Energy mgh - gravitational force times height. Work done by the gravitational foce changes the potential energy.
Kinetic Energy Energy of motion. Equal to mv^2 / 2. Measured in Joules.
Power The rate at which we do work. Equal to Work / Time. Measured in Watts.
Momentum (Mass * Velocity) Momentum is a vector. Direction matters! Opposite directions = oppposite signs.
Impulse Force * time I=Ft (units are kgm/s) also equal to (∆p; change of momentum)
Force mass * acceleration
kgm/s unit for impulse
Joules Unit for evergy and work
Watt Unit of power
Conservation of Energy Total energy before is equal to the total energy after. Applied to roller coasters, Potential + kinetic before = potential + Kinetic after.
Newton's Second Law F net= mass * acceleration
Created by: Mr_Bird
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