Physics

    Current Electricity
    The SI unit of current is
    Physics
    A ball rolling along the ground gradually slows down and finally comes to rest is due to ________
    A ball rolling along the ground gradually slows down and finally comes to rest. It is the force of friction between the surface of the ball and the ground that brings the moving ball to rest.
    Physics
    Which phenomenon is responsible for the echo of sound wave?
    Reflection is responsible for the echo of sound wave.
    Simple Harmonic Motion and Waves
    The spreading or blending of waves around the sharp edges or corners of obstacles or slits is called
    Everyday Science
    The speed of sound varies with
    Physics
    Wind and solar energy are examples of
    Wind and solar energy are examples of renewable sources of energy.
    Physics
    The motion of a body that repeats itself after a regular interval of time is
    A motion that repeats itself after equal intervals of time is known as periodic motion. Examples of periodic motion are a tuning fork or motion of a pendulum if you analyze the motion you will find that the pendulum passes through the mean position only after a definite interval of time.
    Simple Harmonic Motion and Waves
    The distance between 2 consecutive crests or troughs is called
    Physics
    The velocity of the sound is highest in
    The velocity of the sound is highest in metal.
    Gravitation
    The orbital speed of a low orbit satellite is