# Cool Labs ##### Lab #9.7 Mechanics: Chapter 9 Dropping The Ball

Purpose In this experiment, you will lift a ball and drop it. You will determine and compare the potential energy of the ball before it's dropped to the kinetic energy of the ball after right before it hits the ground.... ##### Conservation of Energy: Racing Marbles

A marble will roll on different paths, starting and ending at the same height. Students will predict and then measure the final velocities of the marble. Ramp A is the nearly horizontal ramp, and Ramp B dips down in the... ##### Popper Energy

Students will calculate the potential and kinetic energy of a popper toy using simple formulas. Potential energy is found by observing the maximum height. Kinetic energy is found by using a dynamics formula to find the popper's starting velocity. Students... ##### Collisions on an Air Track

In this lab using an Air Track, students will investigate elastic and inelastic collisions on an air track. Evaluate conservation of momentum and energy. Download Teacher Notes and Student Worksheets Required Equipment