CHAPTER 5 Flashcards
1
Q
WORK
A
the product of force and the distance moved in the direction of the force, measured in joules
2
Q
PRINCIPLE OF THE CONSERVATION OF ENERGY
A
the total energy of a closed system remains constant- energy cannot be created or destroyed
3
Q
KINETIC ENERGY
A
the energy associated with an object as a result of its motion
4
Q
GRAVITATIONAL POTENTIAL ENERGY
A
the capacity for doing work as a result of n objects position in a gravitational field
5
Q
UNIFORM GRAVITATIONAL FIELD
A
a gravitational field in which the field lines are parallel and the value for g remains constant
6
Q
EFFICIENCY
A
the ratio of useful output energy to total input energy, often expressed as a percentage
