Class 10 Physics | Waves

Schedule

Nov 16-28 (4 periods)

Instructional objectives

Students should be able to:

• Demonstrate understanding that waves transfer energy without transferring matter
• Describe what is meant by wave motion as illustrated by vibration in ropes and springs and by experiments using water waves
• Use the term wavefront
• Give the meaning of speed, frequency, wavelength and amplitude
• Distinguish between transverse and longitudinal waves and give suitable examples
• Recall and use the equation v = f λ

Teaching Process

• Discuss the mechanism of generation of a wave.
• Show how waves transfer energy without the transfer of matter.
• Discuss the importance of the terms wavelength, amplitude, frequency, time period
• Discuss the difference between mechanical and non-mechanical waves
• Discuss the difference between transverse and longitudinal waves
• Derive v = f λ

Activities

• demonstration of non-transfer of matter, by showing how a floating ball on water only moves up and down as a ripple passes it.
• Demonstrate transverse and longitudinal waves in a slinky
• Derive v = f λ by making them do a mexican wave

Assignments / Evaluation

• Numerical problems
• Written test