Class 10 Science – Quick Revision Notes
These notes summarize key concepts from Physics, Chemistry, and Biology for quick exam
revision.
,Physics – Light Reflection and Refraction
• Light travels in straight lines and can be reflected from surfaces.
• The law of reflection states that the angle of incidence equals the angle of reflection.
• Mirrors can be plane, concave, or convex depending on the curvature.
• Lenses can be convex (converging) or concave (diverging).
• Refraction occurs when light passes from one medium to another.
, Physics – Electricity
• Electric current is the flow of electric charge.
• The SI unit of current is the ampere.
• Ohm’s Law states that V = IR where V is voltage, I is current, and R is resistance.
• Electrical power is given by P = VI.
• Conductors allow electricity to pass easily while insulators do not.
These notes summarize key concepts from Physics, Chemistry, and Biology for quick exam
revision.
,Physics – Light Reflection and Refraction
• Light travels in straight lines and can be reflected from surfaces.
• The law of reflection states that the angle of incidence equals the angle of reflection.
• Mirrors can be plane, concave, or convex depending on the curvature.
• Lenses can be convex (converging) or concave (diverging).
• Refraction occurs when light passes from one medium to another.
, Physics – Electricity
• Electric current is the flow of electric charge.
• The SI unit of current is the ampere.
• Ohm’s Law states that V = IR where V is voltage, I is current, and R is resistance.
• Electrical power is given by P = VI.
• Conductors allow electricity to pass easily while insulators do not.
