1. LearningObjective
ClickerQuestion:
In a horizontal mass-springsystem,whenamassisstretched andabout to be releasedwhat will happen
to the velocityandwhattype of energyisbuiltupbefore the release?
A: increases,KineticEnergy
B: decreases,ElasticPotential Energy
C: increases, ElasticPotential Energy
D: deceases,KineticEnergy
E: none of the above
Correct Answer:Cthe velocitywillincreaseandelasticpotential energyisbuiltupinthe massof the
object.Asit will be releasedthe potential energywill decrease askineticenergywill increase.
A: Incorrectbecause kineticenergyisnotbuiltupbefore the massisreleased.
B: Incorrect because the velocity willnotdecrease.
D: Incorrect because the velocitywill notdecreaseandkineticenergyisnotbuiltupbefore the release
of the object.
E: C iscorrect