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Understanding Oscillatory Motion and Wave Propagation in Physics

Explore the principles of oscillatory motion and wave propagation in various media, including examples like mass on a spring, pendulum, and electromagnetic waves. Learn about energy conversion, wave characteristics, and different types of waves such as mechanical, electromagnetic, transverse, and longitudinal waves.

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Understanding Oscillatory Motion and Wave Propagation in Physics

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  1. Oscillatory Motion Physics 7(A)

  2. Learning Objectives • Examine and describe oscillatory motion • Examine and describe wave propagation in various types of media • Oscillatory Motion

  3. 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

  4. 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

  5. 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

  6. 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

  7. Learning Objectives • Examine and describe oscillatory motion • Examine and describe wave propagation in various types of media • Oscillatory Motion

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