14.1.4. Overview of Energy Conservation in Solid Mechanics

Try these first

1. 1.

   What is energy conservation?

   Hint

   Think about how energy changes form within a system.

2. 2.

   Define extensive property.

   Hint

   Consider properties that would change with mass changes.

3. 3.

   What does the conservation of energy in mechanics state?

   • Energy can be created
   • Energy can be transformed
   • Energy cannot change

   Hint

   Remember the law of conservation of energy.

4. 4.

   True or False: Extensive properties are independent of mass.

   • True
   • False

   Hint

   Think about properties that change with more material.

5. 5.

   Evaluate the energy conservation in a system where liquid flows through a pipe with varying diameter and discuss effects at the smaller and larger sections.

   Hint

   Consider both kinetic and potential energies at different pipe sections.

6. 6.

   Propose a real-world example of energy conservation principles applied in mechanical engineering. Discuss the mechanisms at play.

   Hint

   Think about work done versus gravitational potential energy.