Exam 2 Concepts

Question 1

Kinetic Energy

Answer 1

energy associated w the motion of systems, individual or a collection of objects

Question 2

Potential Energy

Answer 2

-arises from the interaction between pairs of objects in a system
-the energy held by an object because of its position relative to other objects, stresses within itself

Question 3

First Law of Thermodynamics

Answer 3

governs when energy moves in and out of a system
- work done= the energy that is transformed/transferred
- Delta U = Q - W

Question 4

Energy Principle

Answer 4

-energy can neither be created nor destroyed, only transferred from one form to another within a closed system
- Kf=ki+W

Question 5

Work

Answer 5

-the work done by a force is the scalar product of that force and displacement
W=F*displacement

Question 6

We observe that…

Answer 6

the total change in energy of a system and the systems surroundings is zero