Term

Definition


Term

Definition
A unit of work measured in NewtonMeters 


Term

Definition
a = V2 squared  V1 squared; all over 2d 


Term
Equation of Kinetic Energy 

Definition


Term
Equation for the Workenergy Principle 

Definition
Wnet = .5(m)(v2)^2  .5(m)(v1)^2 Wnet = KE2  KE1 Wnet = change of KE 


Term
Equation for the Gravitation of Potential Energy 

Definition


Term
Equation for the elastic potential energy 

Definition


Term

Definition
v1 = square root of (2KE1/m) 


Term

Definition
E = KE + PE = .5mv2 + mgy 


Term

Definition
the product of the magnitude of the displacement times the component of the force parallel to the displacement 


Term
Definition of Kinetic Energy 

Definition
The energy of motion from the Greek word "kinetikos" meaning motion 


Term
Definition of workenergy principle 

Definition
the net work done on an object is equal to the change in its kinetic energy 


Term
Definition of potential energy 

Definition
the energy associated with forces that depend on the position or configuration of a body (or bodies) and the surroundings 


Term
Definition of gravitational potential energy 

Definition
the rpduct of its weight mf and its height y above some reference level 


Term
Definition of "restoring forces," Hooke's Law, spring equation 

Definition
the spring exerts its force in the direction opposite the displacement (hence the minus sign), acting to return it to its nomal length 


Term
Definition of Conservative forces 

Definition
forces such as gravity, for which the work done does not depend on the path taken but only on the initial and final positions. 


Term
Example for nonconservative forces 

Definition
ex.: friction, air resistance, tension in cord, motor, rocket propulsion, push or pull by person 


Term
definition of total mechanical energy 

Definition
the sum of the kinetic and potential energies at any moment 


Term
definition of the principle of conservation of mechanical energy 

Definition
if only conservative forces are acting, the total mechanical energy of a system neither increases nor decreases in any process it stays constant it is conserved 


Term
definition of the law of conservation of energy 

Definition
the total energy is neither increase nor decreased in any process. Energy can be transformed from one form to another, and transferred from one body to another, but the total amount remains constant. 


Term
Definition of Dissipative forces 

Definition
frictional forces reduce the total mechanical energy 


Term
Definition of thermal energy 

Definition
heat is considered as energy 


Term

Definition
the rate at which work is done OR as the rate at which energy is transformed 


Term

Definition
in SI units, power is measured in joules per seconds 


Term

Definition
one horsepower is defined as 550 ft*lb/s which equals 746 W 


Term

Definition
this can be defined as the ability to do work 


Term

Definition
it stands for the spring constant 


Term
If the Gravitational potential energy is without WFfr what type of path is it? 

Definition


Term
If the Gravitational potential energy is with WFfr what type of path is it? 

Definition


Term
Mechanical energy includes what? 

Definition


Term
The large Gravitational Potential Energy Equation 

Definition
.5m(velocity 1 squared) + mg(y1) + .5k(x2 squared) = .5m(v2 squared) mg(y2) + .5k(x2 squared) + (Ffr)(d) 

