12. Label the following as either Kinetic Energy (KE) or Potential Energy (PE) You serve a tennis ball that goes sailing over the net. __ A car is driving down the street. __ A baby carriage is sitting at the top of a hill. __ An apple is hanging off a tree branch. __ A child floats down a river in an inner tube. __ A rubber band is held stretched and aimed at someone. __ A blender is mixing up a protein shake. __

* **You serve a tennis ball that goes sailing over the net. KE** (The ball is in motion.)<br />* **A car is driving down the street. KE** (The car is in motion.)<br />* **A baby carriage is sitting at the top of a hill. PE** (It has the *potential* to roll down the hill due to its position.)<br />* **An apple is hanging off a tree branch. PE** (It has the *potential* to fall due to its position.)<br />* **A child floats down a river in an inner tube. KE** (The child and the inner tube are in motion.)<br />* **A rubber band is held stretched and aimed at someone. PE** (The stretched rubber band stores potential energy that will be released when it is let go.)<br />* **A blender is mixing up a protein shake. KE** (The blender's blades are moving, performing work.)<br />