Category: Physics

  • 9th and 10th carbon, science

    In this PDF information ofinformation of carbon chapter you read the PDF and topper in a class

  • A stone of mass 0.4 kg is thrown vertically up with a speed…

    here, mass, m=0.4kg,speed,u=9.8ms,

    Acceleration,a= -g = -9.8m/s^2 and time, t = 0.5s

  • Find force using mass and acceleration

    A body of mass 5 kg accelerates at 2 m/s.

    Find the force acting on the body.

    Use formula: F = m a

    Show step-by-step solution.

  • Electrostatic

    Quick Revision Notes: Electrostatics & Potential for Competitive Exams ELECTROSTATICS AND ELECTRIC FIELD (physics) BEST NOTES FOR IIT JEE/NEET CLASS 12

    Physics Class 12: Electrostatics Comprehensive Revision Notes for Board Exams

  • I have 4 homework to do and I need to submit it please and I…

    I have 4 homework to do and I need to submit it please and I want proper work make sure to read the instructions Okay

  • What cause universe to expand

    What are dark matter or dark energy

  • 12 RBSE physics notes bharti niketan sdgh

    This content help for you in 12 th board and any compiti

  • Physics Question

    You should learn this important note Physics Important Notes (High School)

    1. Motion

    Motion = Change in position with time

    Distance = Total path covered

    Displacement = Shortest distance in a specific direction

    Speed = Distance Time

    Velocity = Displacement Time

    Acceleration = Change in velocity Time

    Formula:

    2. Force and Laws of Motion

    Force = Push or pull

    SI unit = Newton (N)

    Newtons Laws:

    An object remains at rest or in uniform motion unless acted upon by a force

    Force = Mass Acceleration

    Every action has an equal and opposite reaction

    3. Work, Energy and Power

    Work = Force Distance

    Energy = Capacity to do work

    Types: Kinetic energy and Potential energy

    Power = Work Time

    Formula:

    4. Gravitation

    Every object in the universe attracts every other object

    Formula:

    5. Light

    Light travels in a straight line

    Reflection = Bouncing back of light

    Refraction = Bending of light

    Law of Reflection:

    Angle of incidence = Angle of reflection

    6. Electricity

    Electric current = Flow of electric charge

    SI unit = Ampere (A)

    Ohms Law:

    7. Magnetism

    Magnets have two poles: North and South

    Like poles repel, unlike poles attract

    8. Sound

    Sound travels in the form of waves

    It requires a medium (cannot travel in vacuum)

    Exam Tips:

    Learn formulas and units

    Practice numerical problems daily

    Draw neat diagrams

    Write answers in points

  • “”How do plant make food by photosynthesis?”

    Photosynthesis is process by which green plants make their own food using sunlight. Requirements: plants need sunlight, water , carbon dioxide and chlorophyll to perform photosynthesis.

  • Define evaporation.

    The process of conversion of a liquid into vapour state at any temperature below its boiling point is called evaporation