# Physics basic concepts and practice

1. TIME AND MOTION
• Motion: Linear, Circular, Periodic
• Uniform and non-uniform motion
• Time and distance
• Distance, displacement, speed, velocity
• Average speed, average velocity
• Acceleration and retardation
• Equation of motion, graphs
2. FORCE AND LAWS OF MOTION
• Effects of Force
• Pressure
• Types of forces
• 1st law of motion
• Inertia and mass
• 2nd law of motion
• 3rd law of motion
• Impulse and momentum
3. FRICTION
• Friction definition
• Static friction
• Sliding friction
• Rolling friction
4. WORK AND ENERGY
• Definition of work
• Work done examples
• Power
• Types of Energy
• Laws of conservation of energy
5. LIGHT
• Reflection of light
• Laws of reflection
• Plane mirror
• Real and virtual images
• Cylindrical mirror, convex and concave mirrors
• Lens: Convex and concave lens
6. ELECTRICITY
• Electric circuit: Open and closed
• Conductor and insulator
• Uses of electric current: Heating, lighting, magnetic
• Uses of magnets and electromagnets
• Electric bell and its working
7. SOUND
• Introduction of wave
• Mechanical wave
• Electromagnetic wave
• Longitudinal wave
• Time period, wavelength, Amplitude, Density