A ball moves slowly when at the top of a slope. At the bottom of the slope, the speed of the ball is much greater. What category of energy decreased as the kinetic energy of the ball increased?
The three balls shown all have the same mass but are at different heights above the ground.
For which color ball is the gravitational potential energy greatest?
For which color ball is the gravitational potential energy least?
Two balls have the same mass and are at the same height above the ground. The green ball is held by a string and does not move. The blue ball is moving upward. Which of the following correctly relates the gravitational potential energies of the balls?