Provide definitions/explanations for the following terms:
$(1)$ Water potential
$(2)$ Translocation of substances

(N/A) $(1)$ Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. It is a measure of the tendency of water to move from one area to another due to osmosis,gravity,mechanical pressure,or matrix effects.
$(2)$ Translocation of substances refers to the long-distance transport of organic nutrients (like sucrose) and minerals through the vascular system (xylem and phloem) of plants.