This document discusses periodic motion and centripetal force. It covers topics like angular displacement, angular velocity, tangential velocity, centripetal acceleration, and applications of uniform circular motion including satellites orbiting Earth and charged particles moving in magnetic fields. Examples of applications mentioned include centrifuges used to separate blood components and the Aurora Borealis caused by charged particles deflecting in Earth's magnetic field.
This document summarizes a chapter about electric current from a physics textbook. It discusses key concepts like electric current, batteries, circuits, resistance, and electromotive force. It explains that electric current is the flow of charge carriers like electrons driven by an external electric field. Batteries provide electromotive force, the ability to drive electric current from high to low potential. The relationship between battery terminal voltage and electromotive force depends on the internal resistance of the battery. Circuits require a closed loop for current to flow. Measurement devices like voltmeters and ammeters are introduced.
This document discusses periodic motion and centripetal force. It covers topics like angular displacement, angular velocity, tangential velocity, centripetal acceleration, and applications of uniform circular motion including satellites orbiting Earth and charged particles moving in magnetic fields. Examples of applications mentioned include centrifuges used to separate blood components and the Aurora Borealis caused by charged particles deflecting in Earth's magnetic field.
This document summarizes a chapter about electric current from a physics textbook. It discusses key concepts like electric current, batteries, circuits, resistance, and electromotive force. It explains that electric current is the flow of charge carriers like electrons driven by an external electric field. Batteries provide electromotive force, the ability to drive electric current from high to low potential. The relationship between battery terminal voltage and electromotive force depends on the internal resistance of the battery. Circuits require a closed loop for current to flow. Measurement devices like voltmeters and ammeters are introduced.