240 likes | 386 Views
Conservation of Energy (E). Energy (E) means Total Energy. Conservation of Energy (E). Drop a Ball off a Cliff. Drop a Ball off a Cliff. When is the ball moving the fastest?. at the lowest point *. * just before it hits the grounds and just after. Drop a Ball off a Cliff.
E N D
Energy (E) means Total Energy Conservation of Energy (E)
Drop a Ball off a Cliff When is the ball moving the fastest? at the lowest point * * just before it hits the grounds and just after
Drop a Ball off a Cliff When is the ball moving the fastest? at the lowest point * When is the ball moving the slowest? at the highest point (it has to stop in order to change directions)
Drop a Ball off a Cliff When is the ball moving the fastest? at the lowest point * When is the ball moving the slowest? at the highest point What is the ball trading for speed? height
Conservation of Energy Us Ug K E J. Gabrielse
Conservation of Energy Ug K E Gravitational Potential Energy Depends on Height J. Gabrielse
Conservation of Energy Ug K E Kinetic Energy Depends on Speed J. Gabrielse
Conservation of Energy Us Ug K E Mechanical Potential Energy Depends on Deformation J. Gabrielse
E = Us+ Ug + K Us Ug K E J. Gabrielse
Total Energy Doesn’t Change Us + Ug + K = E J. Gabrielse
Conservation of Energy with a Pendulum When is the pendulum moving the fastest?
Conservation of Energy with a Pendulum When is the pendulum moving the fastest? at the lowest point
Conservation of Energy with a Pendulum When does the pendulum have the most kinetic energy? at the lowest point
Conservation of Energy with a Pendulum When does the pendulum have the most gravitational potential energy? at the highest point
Conservation of Energy with a Pendulum Ug K E Gravitational Potential Energy Depends on Height
Conservation of Energy with a Pendulum Ug K E Kinetic Energy Depends on Speed
E = Ug + K Ug K E
Total Energy Doesn’t Change Ug + K = E
A E B D C Pendulum Review Where is the gravitational potential energy maximum? Where is the kinetic energy maximum? Where is the gravitational potential energy minimum? Where is the kinetic energy minimum?