Juanita is a research assistant for her favourite physics professor, Dr. Suzuki. Dr. Suzuki is interested in studying the effects of different materials for tires on the velocity of model cars rolling down an inclined plane. Juanita knows from her economics class that to isolate the effects of a particular phenomenon, all other things must remain the same. In Latin, this is referred to as . In order to keep all other things the same and isolate the effects of one particular variable in the physics experiment, Juanita will want to do which of the following? Check all that apply. Hold constant the material used for the body of the car. Carefully clean up after her experiment. Make sure the incline is the same angle for each trial