Light Light Reflection of Light Laws of Reflection The laws of reflection are: Types of Reflection Regular Reflection Irregular Reflection or Diffused Reflection Left-Right Inversed Characteristics of an Image Spherical Mirrors Concave Mirror Uses of Concave Mirrors Convex Mirror Uses of Convex Mirrors Types of Images formed by a Mirror Virtual Image Real Image Example: […]
Class 7 Physics – CHAPTER 11 : LIGHT Read More »
Electric Current and its Effects Electric Current The flow of charges through a circuit is called electric current. The SI unit of electric current is ampere and donated by A. The direction of the electric current is conventionally from the positive terminal to the negative terminal of a cell. Electric Current and Its Effects: Electrical
Class 7 Physics – CHAPTER 10 : ELECTRIC CURRENT AND ITS EFFECTS Read More »
Motion and Time Motion Examples: Chairs of a dining table, a flower vase, table, blackboard etc. Examples: The blades of a rotating fan, the hands of a working wall clock etc. Slow and Fast Motion Rectilinear Motion Circular Motion Rotational Motion Periodic Motion Speed Average Speed Average speed Total distance covered Total time taken Measurement
Class 7 Physics – CHAPTER 9 : MOTION AND TIME Read More »
Heat Concept of Heat Temperature Thermometer Clinical Thermometer Laboratory Thermometer Maximum-Minimum Thermometer Scales of Temperaturesss Transfer of Heat Conduction Convection Radiation Examples: SUMMER AND WINTER CLOTHING: Important Questions Question 1. Which of the following is a good conductor of heat? (a) Iron (b) Steel (c) Aluminium (d) All of these Question 2. A device used
Class 7 Physics – CHAPTER 3 : HEAT Read More »
