Homework Help

Can an object have kinetic energy and potential energy at the same time?

user profile pic

eightgraderhe... | Student, Grade 9 | eNotes Newbie

Posted November 23, 2009 at 11:29 AM via web

dislike 1 like

Can an object have kinetic energy and potential energy at the same time?

2 Answers | Add Yours

user profile pic

pohnpei397 | College Teacher | (Level 3) Distinguished Educator

Posted November 23, 2009 at 11:53 AM (Answer #1)

dislike 2 like

Yes, an object can have both of these at the same time.

Potential energy is energy that is stored in an object.  Kinetic energy is the energy that is associated with motion.  So what you have to have is an object that is in motion but still has more energy that it has yet to convert into kinetic energy.

A perfect example of this would be an object that is falling but has not yet hit the ground.

This object would have kinetic energy because it is in motion.  But it would also have potential energy because it has a ways yet to fall before it lands.

user profile pic

clopatka | High School Teacher | eNotes Newbie

Posted November 24, 2009 at 7:01 AM (Answer #3)

dislike 0 like

Yes.  Take a roller coaster for example - as the cart rides the rail it has kinetic energy.  As it is moving it reaches the top so then it has both potential energy and kinetic energy.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes