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PHYS 1500 Chapter 3
Question | Answer |
---|---|
equilibrium | experiencing zero net force |
equilibrium position | natural position of a spring when it's not being compressed |
stable equilibrium | state of the spring after it has been compressed |
restoring force | causes a spring to return to its equilibrium length once no more force is being exerted on it. |
hooke's law | restoring force= -spring constant * distortion F=-kx |
elastic limit | how far a spring or an object can stretch before becoming permanently damaged. |
elastic potential energy | energy stored in a spring when compressed |
calibration | comparing a local device to a generally accepted standard |
center of percussion | point on a baseball bat that does not experience acceleration |
vibrational node | part of the bat that does not vibrate when it strikes the ball |
elastic collisions | theoretical collision in which all collision energy is returned as rebound energy |
inelastic collisions | some collision energy fails to become rebound energy |
uniform circular motion | an object has the urge to move in a straight line but in pulled into circular motion |
centripetal acceleration | acceleration toward the center of a circle |
centripetal force | force that pushes an object toward the center of a circle |
feeling of acceleration | feeling that the body is moving in the opposite direction of acceleration |
apparent weight | the feeling of weight changes during acceleration |
a= | v^2/r or w^2*r |