Circular motion physics Flashcards
(10 cards)
Angular velocity
Rate of change of angle with respect to time.
Linear velocity
Speed of a particle perpendicular to the radius at that point.
Centripetal acceleration
Acceleration of an object travelling in uniform circular motion; it is directed toward the center of the circle.
Centripetal force
Force required to maintain uniform circular motion; it is directed toward the center of the circle.
Kepler’s third law
The square of periodic time of a satellite’s orbit around a planet is proportional to the cube of the radius of the orbit and inversely proportional to the mass of the planet.
Hooke’s law
When an object is stretched, bent, or deformed, the restoring force (F) to the equilibrium position is proportional to the displacement (s) from its equilibrium position (provided elastic limit is not exceeded).
Elastic constant
Constant proportionality relating the applied force and resultant displacement for a given spring.
Elasticity
The ability of a body to resist a distorting influence or stress and to return to its original size and shape when the stress is removed.
Elastic limit
Point beyond which an object will not return to its original size and shape.
Simple harmonic motion
Where the acceleration of a body towards a particular point is proportional to its displacement from that point.
