Review of Course -- 9
- Conservation Laws - Most compact, powerful laws of physics
- Conservation of total momentum (vector)
- Isolated system (no outside forces) has conserved momentum magnitude and direction
- Conservation of energy -- a holistic principle involving many types of energy
- 1st Law of Thermodynamics
- Types of energy:
- kinetic energy (motion) KE = (1/2)mv2
- Potential energy that can be recovered (e.g., Gravity near earth: PE = mgh)
- Heat , other, ….
- Total energy conserved in isolated system
- Work is the transfer of energy by forces and displacement ( W = Fx cos(q))