Zusammenfassung der Ressource
Physics 2010 Exam 2
- Chapter 5: circular motion and gravitation
- Circular Motion
- centripetal acceleration
- ac=(V^2)/r
- F=(mV^2)/r
- Newton's Laws of Gravitation
- F= (Gm1M2)/(r^2)
- Chapter 6: work and energy
- Work
- W= F(delta r)cos(theta)
- Force displacement curve
- W= delta KE
- -W= delta PE
- Kinetic energy
- KE= (1/2)m(v^2)
- Energy released
- Potential energy
- Energy stored
- delta PE= PEi - PEf
- Conservation of energy
- KEi + PEi +W = KEf + PEf
- Hooke's law
- F= -kx
- PE= (1/2)k(x^2)
- Gravitation potential energy
- PE=mgy
- PE= (Gm1m2)/r
- Chapter 7: momentum, impulse, and collision
- Momentum
- P=mv
- conservation of momentum
- Impulse
- Impulse = F(delta t) = DeltaP
- Collision
- Elastic
- Objects bounce off each other, energy is not conserved.
- Inelastic
- Objects stick together, energy is conserved.