OpenStax Physics (High School)
Lesson Plan
Motors, Generators, and Transformers
Goals / Objectives
Explain how an electric motor converts electrical energy to mechanical energy using magnetic force on current-carrying loops
Explain how a generator converts mechanical energy to electrical energy using electromagnetic induction
State the principle of a transformer and calculate output voltage and current using the turns ratio
Apply energy conservation to transformers (P_primary = P_secondary for ideal transformer)
Connect the transformer to the power transmission problem from sec-19-4
Standards
20.3
"In a motor, electrical energy is converted into mechanical energy. In a generator, mechanical energy is converted into electrical energy. A transformer changes the voltage of AC electricity." "For an ideal transformer: V_s/V_p = N_s/N_p and V_p I_p = V_s I_s."
Academic Vocabulary
Not in our source material
Remediation
Enrichment
This lesson’s brief has no Differentiation
Accommodations
Not in our source material
Anticipatory Set / Bell Work
Modeling
Check for Understanding
This lesson’s brief has no Formative Assessment or Assessment Ideas