Question

1. If a brick is being held (stationary) 15 m above the ground the potential energy will be equal to the total energy of the system.
True
False
2. If a brick is being held (stationary) 15 m above the ground and then dropped, the kinetic energy will be equal to the total energy of the system when the brick has fallen 5 m.
True
False
3. A roller coaster car will have the same total energy at the top of the ride as it does when it just reaches the bottom.
True
False
4. A change in mass will have a greater affect on the kinetic energy of an object then a change in velocity.
True
False