UNIT 8 Electric Charge and Electric Force 8.F Forces and Acceleration (Motion Review) NAME DATE Scenario Consider a charged box and a charged sphere somewhere in space far from other objects. The box is very massive so that it can be assumed to remain at rest, but the sphere is light and able to freely move. The four cases below show different combinations of signs of charge on the box and sphere as well as the initial direction of the sphere's velocity. Assume that all cases have the same initial speed of the sphere, initial distance from sphere to box, magnitude of charge on sphere, and magnitude of charge on box. + + +0 + Case A Case B Case C Case D Data Analysis PART A: In which case or cases above is the speed (magnitude of velocity) increasing at the moment shown? Mark all correct answers. Case A Case B Case C Case D Justify your