Lesson Plan

• Describe the difference in particle motion between transverse and longitudinal waves.
• Explain how wave‑speed formulas differ for strings and fluids.
• Compare the polarization properties of transverse and longitudinal waves.
• Apply v = fλ and v = ω/k to solve problems involving both wave types.
• Sketch a single‑cycle diagram for each wave type showing key features.

• Projector and screen
• Whiteboard and markers
• Printed handouts with comparison tables and diagrams
• Demonstration apparatus (string on a stand, speaker and tube)
• Worksheets with practice problems
• Calculator

Begin with a quick demonstration: shake a rope to show a transverse wave and tap a tube to produce a sound pulse, prompting students to observe the differing particle motions. Review prior knowledge of basic wave concepts such as wavelength, frequency and the relation v = fλ. State that by the end of the lesson students will be able to distinguish transverse from longitudinal waves and apply the appropriate formulas. Success will be measured through a sketch and a short problem on the exit ticket.

1. Do‑now (5') – short recall quiz on wave terminology displayed on the board; teacher checks answers.
2. Mini‑lecture (10') – define progressive waves and introduce key differences using slides and the comparison table.
3. Demonstration (8') – rope and tube experiments; students describe particle motion and relate to the table.
4. Guided practice (12') – pairs complete worksheet: identify wave type, write the correct speed formula, and sketch a single cycle for each.
5. Check for understanding (5') – clicker questions or show of hands to confirm concepts; address misconceptions.
6. Sample exam question (8') – solve the provided sound‑wave problem together, emphasizing the solution steps.
7. Summary & exit ticket (5') – students write one key difference and solve a quick calculation on a sticky note to hand in.

Recap the main distinctions in particle motion, restoring forces, speed formulas and polarization. Collect the exit tickets to gauge immediate understanding and assign a worksheet for homework that includes additional sketching and calculation tasks. Remind students to review the wave‑speed derivations before the next class.