Transcript Titan-Phase
Model Rocketry Titan Phase Titan Phase 1 Laws of Motion First Law — • An object at rest tends to stay at rest unless moved by a force • An Object in motion tends to remain in motion unless stopped by a force. Second Law — Force equals mass times acceleration F=MxA Third Law — For every action there is an equal and opposite reaction Titan Phase 2 Acceleration • The rate of change in Velocity with respect to time • How fast something is traveling after a specific period of time • The speed of an object after a time interval Titan Phase 3 Three Axis of Movement Titan Phase 4 Three Axis of Movement Axis Longitudinal Lateral Vertical Movement Roll Pitch Yaw Titan Phase 5 Model Rocket Aerodynamics • Model is static on the launch pad – Newton’s First Law (Object at rest) • Model is dynamic when it lifts off – Newton’s First Law (Object in motion) • Gravity pulls rocket towards center of the Earth while thrust from rocket motor pushes rocket away Titan Phase 6 Forces of Flight • Same as for an Airplane—Just reapplied – Lift – Thrust – Drag – Gravity • Center of Gravity – Exact spot where all mass is balanced • Center of pressure – Aerodynamic force created when air moves past rocket Titan Phase 7 Rockets in Flight • A rocket that is stable will fly well • Unbalanced rockets will fly erratically and unpredictably • All of Newton's laws apply directly to rockets in flight Titan Phase 8 Laws Applied to Rockets • 1st law: Rocket sits “still” on launch pad or move through the air • 2nd law: – Force from exhaust gases creates thrust to push the rocket – Acceleration depends on amount thrust verses weight of rocket • 3rd law: Rocket pushes away from gases as gases push away from rocket Titan Phase 9 What’s Been said • • • • Newton’s laws of motion Dimensions and properties of a rocket Forces of flight upon a rocket Gravity is the force that attracts objects Titan Phase 10 Review Titan Phase 11 Good ‘Ol Newton A. An object at rest 1. Newton’s 1st Law of Motion B. F=MA 2. Newton’s 2nd Law of Motion C. Action produces an Opposite Reaction 3. Newton’s 3rd Law of Motion Titan Phase 12 Identify the Axis Titan Phase 13 Match the terms A. Point where the mass is perfectly balanced 1. Center of Pressure 2. Center of gravity 3. Acceleration B. Rate of change in Velocity C. Focus of aerodynamic forces Titan Phase 14 Thoughts to Ponder • What is the easiest way to move the Center of gravity Forward? • What is the easiest way to move the Center of Pressure backward? Titan Phase 15