Introductory Physics How we describe motion Speed how
Introductory Physics
How we describe motion • Speed – how fast something is moving • Velocity – speed and direction • Acceleration – change in velocity • Acceleration of Gravity – 9. 8 m/s 2
How we describe motion • Momentum – an object’s mass X velocity • Mass – amount of matter • Force – required to change on object’s momentum • Weight – force measured by a scale, mass X gravity’s accel.
Newton’s Laws of Motion Newton’s First Law
Newton’s Laws of Motion Newton’s Second Law
Newton’s Laws of Motion Newton’s Second Law
Newton’s Laws of Motion Newton’s Third Law
Angular Momentum • Similar to momentum, but moving in a circle • L=m. Xv. Xr • Angular momentum is conserved
ENERGY
Types of Energy • Kinetic Energy – involves motion • Radiative Energy – involves light • Potential Energy – might later be converted to other forms of energy
Thermal Energy
Potential Energy
Gravitational Potential
Conservation Laws • Conservation of momentum • Conservation of angular momentum • Conservation of energy
Force of Gravity
Newton’s Law vs. Kepler’s Law
Newton’s Law vs. Kepler’s Law Newton’s Law Kepler’s Law Newton’s Kepler’s Law
Gravity, Energy and Orbits Orbital Energy
Gravity, Energy and Orbits Gravitational Encounter
Gravity, Energy and Orbits Escape Velocity
Tides Spring Tides Neap Tides
Tides
- Slides: 22