An object slides down a frictionless ramp. Its total mechanical energy a. increases b. decreases c. stays the same d. is always zero

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”