Welcome great EduPodian, here is your Third Term SS2 Physics Lesson Note excerpt.
Scheme of Work
1. Reflection of light on plane surfaces, laws of reflection, image formation by plane mirror, application of reflection on plane mirror
2. Reflection on curved mirrors-types, images produced, uses and mirror formulae
3. Refraction of light, laws of refraction, effects of refraction, refraction through rectangular prism
4. Refraction through triangular prism, real and apparent depth, total internal reflection, application of total internal reflection
5. Refraction through lenses-types of lenses, image formation in lenses, lens formulae
6. Optical instrument-camera, projector, simple and compound microscope, telescope, human eye, defects and correction of vision
7. Dispersion of white light- production of pure and impure spectrum, colour of objects
8. Sound wave- production, transmission, speed, echo and its application, reverberation, characteristics of sound, forced vibration, resonance
9. Musical instruments
10. Vibration in pipes.
REFERENCE TEXTBOOKS
• New School Physics by M.W Anyakhoha
• New System Physics by Dr. Charles Chow.
• SSCE WAEC Past Questions
• UTME Physics Past Questions
Week 1:
WEEK ONE
Reflection of light on plane surface
Laws of reflection
Image formation by plane mirror
Application of reflection on plane mirror
REFLECTION OF LIGHT ON PLANE SURFACE
There are two types of reflection:
1. Regular Reflection
2. Diffuse Reflection or Irregular Reflection
In regular reflection, parallel rays of light incident on a smooth or polished surface are reflected as parallel rays in one direction. In diffused or irregular reflection, parallel rays of light incident on a rough or irregular surface are reflected in various directions
LAWS OF REFLECTION
The first law of reflection states that the incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane
The second law of reflection states that the angle of incidence (i) is equal to angle of reflection (r)…. Click here to order the complete Physics Lesson Note for SS2 third term
Week 2:
REFLECTION ON CURVED MIRROR-TYPES, IMAGE PRODUCED, USES AND MIRROR FORMULAE
TYPES OF CURVED MIRROR
When a shell of a hollow sphere of glass is made out of a piece of glass and then silvered, a curved or spherical mirror is obtained. These mirrors due to their curvature form images that are quite different from plane mirrors.
If the glass is silvered from outside so that light can be reflected from inside, it is called concave or converging mirror… Click here to order the complete third term Physics Lesson Note for SS2
Week 3:
REFRACTION OF LIGHT
Laws of refraction,
Effects of refraction,
Refraction through rectangular prism.
REFRACTION
There is a change in the direction and speed of a ray of light when it passes from medium to another medium of different density. This change in the direction of the light of the light ray which is due to difference in the speed of light in different media is called refraction.
When a ray of light travels from optically less dense medium (air) to an optically dense medium (water, glass), it bends towards the normal.
A ray passing from glass or water to air is bent away from the normal
When a wave, e.g light wave is refracted,
1. Its direction of travel changes
2. Its velocity changes.
3. Its wavelength changes
4. Its frequency remains the same… Click here to order the complete Lesson Note on Physics SS2 third term
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