Oscillation that transfers energy
A wave transfers energy and information without net transfer of matter. Distinguish amplitude, wavelength, period, and frequency.
Greek Lyceum Grade 3 / Physics / Curriculum
Κύματα: structured theory, worked examples, answered practice, and a mastery checklist for Greek Lyceum Grade 3.
Unit
The essential chapter ideas in a clear sequence before practice.
A wave transfers energy and information without net transfer of matter. Distinguish amplitude, wavelength, period, and frequency.
The relation v = fλ connects the medium and the oscillation. At a boundary, source frequency stays fixed while speed and wavelength may change.
Use the normal, angles, and wavefronts. Superposition adds displacements without permanently changing the component waves.
Physics
Follow the method step by step and check why every step is valid.
A wave has frequency 4 Hz and wavelength 3.5 m. Find its speed.
Physics
Panhellenic physics requires diagrams, principle selection, equations, units, time management, and chapter connections.
The structure follows the official textbook layout and is used to organise study.
The areas that usually create mistakes or need extra revision.
v = 14 m/s
Before calculating, explain the key idea from “Αρμονικό κύμα” and which conditions must be checked.
The answer should show not only which rule is used for “Αρμονικό κύμα”, but also why it is valid here.
Κύματα
Try independently, use the hint if needed, then open the answer guide.
1. Explain the idea and give one correct foundation example for “Αρμονικό κύμα”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Αρμονικό κύμα” to a physical law or model, correct units, and an interpretation.
2. Solve an application and show every intermediate step for “Ταχύτητα διάδοσης”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Ταχύτητα διάδοσης” to a physical law or model, correct units, and an interpretation.
3. Compare a correct and an incorrect approach and justify the difference for “Συμβολή”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Συμβολή” to a physical law or model, correct units, and an interpretation.
4. Create a short exam-style question and check your answer for “Στάσιμα κύματα”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Στάσιμα κύματα” to a physical law or model, correct units, and an interpretation.
Where to start: textbook, daily material, PDFs, videos, and worked examples.
Targeted practice before full tests so coverage is clear.
How to measure progress in this chapter and when it enters a cumulative mock.
What to do after finishing the chapter and how it connects to the next unit.
Note: for the official examinable syllabus of each school year, always confirm with the school, tutor, and current Ministry/IEP announcements.