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Oscillatory Motion. Physics 7(A). Learning Objectives Examine and describe oscillatory motion Examine and describe wave propagation in various types of media. Oscillatory Motion. Oscillation – a repetitive change over time that occurs about an equilibrium point
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Oscillatory Motion Physics 7(A)
Learning Objectives • Examine and describe oscillatory motion • Examine and describe wave propagation in various types of media • Oscillatory Motion
Oscillation – a repetitive change over time that occurs about an equilibrium point • Period– the amount of time required to complete an oscillation • Measured in seconds, s • Examples • Mass on a spring • Pendulum • Playground swing • Vibration of guitar strings • Electromagnetic waves • Oscillatory Motion
Energy constantly converted between gravitational potential energy and kinetic energy • At the top of its swing, the pendulum has maximum gravitational potential energy and minimum kinetic energy • At the bottom of its swing, the pendulum has maximum kinetic energy and minimum gravitational potential energy • Energy in Oscillatory Motion
Wave– an oscillation transferred through space with little or no disturbance of the medium it moves through • Can be represented by a displacement versus time graph of a pendulum • Description of Oscillatory Motion
Mechanical waves –require a medium to travel through • Ocean waves travel through water • Sound waves travel through the air • Electromagnetic waves – do not require a medium to travel through • Visible light • Radio waves • Transverse waves–particles move perpendicular to the motion of the wave • Electromagnetic waves • Longitudinal waves– particles move parallel to the motion of the wave • Sound waves • Pressure waves • Types of Waves
Learning Objectives • Examine and describe oscillatory motion • Examine and describe wave propagation in various types of media • Oscillatory Motion