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Evloution in processors
This document discusses different types of waves including mechanical and electromagnetic waves. It defines key wave properties such as amplitude, wavelength, transverse and longitudinal waves. It also explains wave phenomena including reflection, refraction, diffraction, interference and stationary waves. Specific examples are provided to illustrate each concept. The key points covered are: - Mechanical waves require a medium for propagation while electromagnetic waves do not. - Transverse waves have oscillations perpendicular to the direction of travel, while longitudinal waves have oscillations parallel to the direction of travel. - Wave properties like amplitude, wavelength, frequency are defined. - Reflection, refraction, diffraction and interference of waves are explained with examples. - Stationary waves are
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Evloution in processors
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- 5. Mechanical Electromagnetic Require medium Do notrequire medium
- 6. Mechanical waves Requiremedium for their propagation E.g. Water waves String waves
- 7. electromagnetic waves Donot require medium for their propagation E.g. light waves heat waves X rays
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- 9. Transverse waves Particle ofmedium vibrate perpendicular to direction of wave propagation
- 10. Crests and Troughs Crests: points of maximum displacement on a wave Troughs: points of minimum displacement on a wave Distance along rope displacement CREST CREST TROUGH
- 11. AMPLITUDE (A) MaximumDisplacement from the rest or central position. SI unit metre (m) displacement distance along rope crest crest trough amplitude amplitude
- 12. Wavelength (λ) Thedistance between two successive points of the same phase.metre (m). displacement distance along rope crest crest trough λ amplitude amplitude
- 13. longitudinal waves Particle ofmedium vibrate parallel to direction of wave propagation
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- 16. • Reflection • Refraction •Diffraction • Interference Wave Properties
- 17. Reflection A straightbarrier is placed at an angle along the incoming waves?
- 18. Reflection Unchanged Speed Frequency wavelength Changes direction
- 19. Reflection Incident ray Normal Reflected ray Angleof incidence Angle of reflection • The changing direction of a wave upon impact with a barrier or object
- 20. refraction A pieceof glass block is submerged at an angle to the incoming water waves
- 21. bending of awave as it passes from one type of medium into another Refraction
- 23. Diffraction The bendingof a wave as it either passes by a barrier spreading out of a wave as it passes through an opening
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- 25. Interference The totaldisturbance within a medium when more than one wave is present
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- 30. Interference In mostcases we end up with partial interference creating a beat.
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- 32. Stationary Waves Astationary wave doesn’t appear to be travelling. Nodes Antinodes
- 33. + = .Identify thetype of interference
- 35. Transverse waves Longitudinal waves Name thetypes mechanical waves
- 36. Label Crests andTroughs CREST CREST TROUGH
- 37. Stationary wavesIdentify thetype of waves
- 38. Home work Find fiveexamples of each type of wave