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⭐️ PART A: To describe the Doppler effect as the change of pitch, not the change in loudness.
Sound one tuning fork.
Quickly bring it close and away from your hear. Listen the change you listen, pitch and loudness.
Use the simulation to understand the change (https://physlets.org/pp/oscillations_waves/sound/default.html)
⭐️ PART B: To describe the law of reflection of light.
Observe the demonstration by the instructor using a laser pointer, powder and mirror.
How can we see an image?
Sketch a diagram to describe the law of reflection.
⭐️ PART C: To differentiate between light reflection and refraction effects
Use the simulation to understand the difference.
https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_all.html
⭐️ PART D: To perform experiment on Snell's law.
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