What was formerly called mental retardation?
Intellectual disability (ID), once called mental retardation, is characterized by below-average intelligence or mental ability and a lack of skills necessary for day-to-day living.
What is the other name of retardation in science?
In this page you can discover 22 synonyms, antonyms, idiomatic expressions, and related words for retardation, like: impediment, slowness, delay, deceleration, hindrance, mental-retardation, lag, subnormality, backwardness, detainment and obstacle.
What is retardation example?
When the velocity of a body decreases, its acceleration is negative. Negative acceleration is called ‘retardation’ or ‘deceleration’. For example, when a stone is thrown upwards, it is under retardation. Similarly, when a bus approaches a bus-stop, its motion gets retarded.
What is retardation formula?
The formula for retardation is- r=−a⇒r=−(v−u)t. Here, r is the retardation. a is the acceleration. v is the final velocity.
How do you find retardation examples?
a = Change in velocity/Time taken So, you can get a negative acceleration value in the case of vretardation.
How is retardation written?
Deceleration also known as retardation or negative acceleration, is the acceleration acts in the opposite direction of motion and is responsible for reducing the velocity of a body. SI unit of deceleration is m/s2. Example: = 5 m/s2.
What is the symbol of retardation?
Answer:There is no symbol for retardation. It is written as ‘retardation’ only.
Is retardation positive or negative?
Retardation is nothing but a negative acceleration. The velocity of the body may either increase or decrease. The change in velocity is known as acceleration. If the velocity of the body increases, acceleration is said to be positive.
Is retardation and acceleration same?
Acceleration is the increase in velocity per second, while retardation is the decrease in velocity per second. Thus, retardation is negative acceleration. In general, acceleration is taken positive, while retardation is taken negative.
What is retardation Class 9?
Retardation means negative acceleration . The velocity of a body may increase or decrease . So when the velocity of a body increase, the acceleration is said to be positive and when the velocity of a body decrease, the acceleration is said to be negative(Retardation) .
What is retardation in English?
the act of retarding or state of being retarded. something that retards; hindrance. Usually Offensive. slowness or limitation in intellectual understanding and awareness, emotional development, academic progress, etc. See also mental retardation.
What is the real meaning of negative acceleration?
According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration. When an object is speeding up, the acceleration is in the same direction as the velocity. Thus, this object also has a negative acceleration.
What is difference between retardation and negative acceleration?
Retardation is the inverse of acceleration and is defined as a decrease in velocity per unit of time. Acceleration can be positive (+), zero (0), or negative (-). Retardation is the inverse of acceleration. Negative acceleration is also referred to as retardation or deceleration.
What is an example of negative acceleration?
→When you flop down on your bed, you undergo negative acceleration. When you place an object on a table, the object undergoes negative acceleration too. →When a moving object is losing speed constantly with time, the motions is in negative acceleration, or deceleration.
What is the other name of negative acceleration?
The other name of negative acceleration is retardation. Note:It is important to remember that the term retardation is also known as deceleration.
What is positive negative acceleration?
A positive acceleration means an increase in velocity with time. negative acceleration means the speed reduces with time. When the car slows down, the speed decreases. When an object is speeding up, the acceleration is in the same direction as the velocity.
How do you know if acceleration is positive or negative?
That means that the direction of the acceleration determines whether you will be adding to or subtracting from the velocity. Mathematically, a negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity.