A box is released from rest and slides down a ramp in a
closed system. Even though the box speeds up, its
What best explains why the box's final kinetic energy is
kinetic energy at the bottom of the ramp is less than the
less than its initial potential energy?
potential energy that it had at the top of the ramp.
O In a closed system, kinetic energy is always less IS
than potential energy.
Some potential energr-was converted into thermal
energy due to friction.
• The acceleration due to gravity became smaller as
the box slid down the ramp.
In
closed system, total energy is constantly being
lost to outside objects.