What is periodic motion?
If the motion of a moving object is such that it passes repeatedly through a definite point in the same direction in the same manner in a definite interval of time, then this motion is called periodic motion.
Physics
What is diffusion?
The process of spreading solid, liquid, or gaseous substances spontaneously and uniformly in a medium is called diffusion. Diffusion is the net passive movement of molecules or particles from regions of higher to regions of lower concentration. For diffusion to occur there must be a concentration gradient. To define diffusion in the biological context, imagine … Read more
What is Vernier constant?
The vernier constant is the ratio of the smallest division of the main scale to the number of divisions present in a vernier scale. Vernier constant is a term used in the measurement of length, particularly in instruments such as vernier calipers and micrometers. It is a dimensionless quantity that represents the value of the … Read more
What is dimension?
The exponential of the primary quantities in a physical quantity is called the dimension of that quantity.In physics, a dimension is a measure of the physical size of an object or system. It refers to a property of space or time that can be used to describe the position, orientation, or movement of objects. In … Read more
What is uniform velocity?
A body is said to have uniform velocity if it covers equal distance in equal intervals of time in a particular direction, however the time intervals may be.
Why does a moving car come to rest after applying break? Explain.
After applying break, a retarding force causes the velocity of a moving car to gradually decrease. That means negative acceleration or deceleration takes place. Because of this negative acceleration, the velocity of a moving gradually decreases to zero and comes to rest.
What is retardation? Physics
The rate of decrease in velocity of a body with time is called retardation or deceleration. The preferred term in physics to describe the decrease in an object’s velocity is deceleration. Deceleration is simply the negative of acceleration or a change in velocity where the final velocity is less than the initial velocity. It is … Read more
What is called quantity?
Quantity is a property that can exist as a multitude or magnitude, which illustrate discontinuity and continuity.