Chapter : 5 Heat
Heat as a form of energy and its units, joule(J) and calorie (cal).
Different units of Temperature (°C, °F, K).
Effects of Heat
Methods of Heat Transfer
Thermos Flask: (Application of Heat Transfer)
Chapter : 6 Sound
Sources of sound
Sound as a longitudinal wave
Characteristics of a sound wave: Amplitude and Frequency
Sound needs a medium to propagate.
Reflection and Absorption of sound.
Relative speed of sound in different mediums
Chapter : 7 Electricity and Magnetism
Law of Magnetism
Test for a magnet (by repulsion)
Electromagnetism, Electromagnets and their applications
Electric current as a flow of charges
Electric cell as source of electricity
Resistors as components that oppose the flow of current.
Symbolic representation of electrical components
Simple electric circuitSeries and Parallel
Battery as a collection of cells connected in series
Good and Bad conductors of electricity