Please help me with this question

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

In a system, when potential energy decreases, then entropy also decreases. true false

This is the number of complete movements of a wave per second.