🔍 Key Concepts

• Basic motor terminology: difference between force, torque, and power • What a twisting or rotational force on a shaft is called in mechanics • The difference between electrical terms like voltage and electromotive force vs mechanical terms

💭 Think About

• Which choice refers specifically to a mechanical, turning effect on a shaft rather than an electrical property? • When a propeller shaft is turned by an engine, what do we call the engine’s ability to twist that shaft? • Look at each option: which ones clearly belong to electricity, and which one belongs to mechanics?

✅ Before You Answer

• Verify which term is used in physics to describe a turning or twisting force about an axis • Eliminate options that describe electrical pressure or magnetic effects, not mechanical twisting • Confirm that the remaining option is the standard term used for the rotational effect of a force on a shaft