people keyword descriptive student wa learning research simulation ABSTRACT topic group negeri 4172121028 data after assisted assessment instrument teacher' criteria physic material iii experiment manurung eclesia percentage applied inquiry meliana suitable phet worksheet produce included but based LKPD use aim type result medan total development SMA MIA validation media questionnaire subject energy model study clas large determine category work each wherea technique sample teacher very feasible guided proces analysi expert trial using limited obtained concluded response used consisted small developed school stage NIM