Quick Answer: What Is Retardation Short Answer?

What is retardation give example?

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.

In both the cases mentioned above the acceleration decreases..

What is retardation and its formula?

“Retardation means negative acceleration. … So formula will be the same as that of acceleration. As acceleration can be defined as the rate of change of velocity i.e. mathematically: a= (v-u)/t. Where v = final velocity, u= initial velocity & t= time taken to change the velocities.

Is retardation a disability?

Intellectual Disability (ID) (formerly called mental retardation) is the most common developmental disability–nearly 6.5 million people in the United States have some level of ID.

What is mental retardation and its causes?

There are various known causes of mental retardation, including genetic disorders, maternal infections, psychosocial conditions, drug exposure, and environmental chemical exposure. The established risk factors for MR include: [3] Various genetic disorders (e.g. Down’s Syndrome, phenylketonuria)

How can mental retardation be prevented?

Prenatal diagnosis, newborn screening, dietary supplementation or restriction, hormone replacement, vaccination, and immunotherapy are just some of the techniques that have been applied to prevent mental retardation.

What are signs of low IQ?

Lower than average scores on IQ tests. Difficulties talking or talking late. Having problems remembering things….IQ 50-70.Slower than normal in all areas.Can conform socially.Can acquire daily task skills.Integrated in society.No unusual physical signs.Can acquire practical skills.Reading and math skills up to grades 3-6.

What causes retardation?

trauma before birth, such as an infection or exposure to alcohol, drugs, or other toxins. trauma during birth, such as oxygen deprivation or premature delivery. inherited disorders, such as phenylketonuria (PKU) or Tay-Sachs disease. chromosome abnormalities, such as Down syndrome.

What is retardation called now?

Intellectual disability (ID), also known as general learning disability and formerly mental retardation (MR), is a generalized neurodevelopmental disorder characterized by significantly impaired intellectual and adaptive functioning.

What is the meaning of mental retardation?

Mental retardation currently is defined by the American Association on Mental Retardation (AAMR) as “significantly sub-average general intellectual functioning accompanied by significant limitations in adaptive functioning in a least two of the following skills areas: communication, self-care, social skills, self- …

What is displacement formula?

Displacement = velocity x time. If an object is moving with constant acceleration then the equation of third law of motion used to find displacement: S = ut + ½ at²

What is the time formula?

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

What is difference between speed and velocity?

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. Put another way, speed is a scalar value, while velocity is a vector.

What is a circular path?

In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.

What is the most common cause of mental retardation?

Down’s syndrome is the most common specific cause of mental retardation, followed by the Fragile X syndrome, which mainly affects boys.

What does Rosa’s law state?

Known as “Rosa’s Law,” the law removes the terms “mental retardation” and “mentally retarded” from federal health, education and labor policy and replaces them with people first language “individual with an intellectual disability” and “intellectual disability.”

What’s a displacement?

The word displacement implies that an object has moved, or has been displaced. Displacement is defined to be the change in position of an object.

What is displacement used for?

Displacement (symbolized d or s ), also called length or distance, is a one-dimensional quantity representing the separation between two defined points. The standard unit of displacement in the International System of Units ( SI ) is the meter (m). Displacement is usually measured or defined along a straight line.

What is difference between distance and displacement?

distance is how far away something has travelled from another object, while displacement is how far something is from the other object. Displacement is a vector quantity, unlike distance.

What are the 4 levels of mental retardation?

The DSM-IV classifies mental retardation into four stages based on severity: mild (IQ score of 50-55 to approximately 70), moderate (IQ score of 30-35 to 50-55), severe (IQ score of 20-25 to 35-40), and profound (IQ score of less than 20-25).

At what age is mental retardation diagnosed?

When is the diagnosis made? The onset of mental retardation is in childhood, before 18 years of age. The diagnosis is generally made after infancy, between the preschool and school-age periods. Sometimes the diagnosis may be made later, at the time when a thorough assessment is performed.

What is mental retardation and types?

The onset of the condition occurs during the developmental period, i.e., gestation through age 18 years. Mental retardation comprises five general categories: borderline, mild, moderate, severe and profound. Categories are based on scores obtained through use of age-standardized tests of cognitive ability (Table 1).