### Chapter 17: Circular Motion

Angular Displacement θThe angle θ, through which the object has moved is known as its angular displacement. θ=arc/radius = s/r

Rutherford’s Scattering Experiment Hans Geiger and Ernest Marsden worked with Ernest Rutherford in his Manchester laboratories in 1909. They fried

### Chapter 15: Stationary Waves

Stationary / Standing WavesWhen two similar waves travel in opposite directions they can superpose to form stationary wave.  This usually

### Chapter 12: Practical Circuits

Internal Resistance (r) Internal resistance is the chemical inside the cell that offers a resistance to the flow of current.

### Chapter 11: Resistance and Resistivity

Ohm’s Law A conductor obeys Ohm’s law if the current in it is directly proportional to the potential difference across

### Chapter 10: Kirchhoff’s Law

Kirchhoff came up with two laws concerning conservation in electrical circuits. First law It states that the sum of currents

### Chapter 9: Electric Current, Potential Difference and Resistance

Circuit symbols and diagrams Electric components and their circuit symbols Electric CurrentIt is the rate of flow of electric charge

### Chapter 7: Matter and Materials

DensityDensity is defined as the mass per unit volume of a substance.Ƿ =m/v PressurePressure is defines as the normal force