The term acceleration, used in physics, is a vector quantity. This means that acceleration contains both a number which is called its magnitude and a specific direction. An object is said to be accelerating if its rate of change of velocity is...

A speeding up in the rate of movement of an object, the rate of acceleration being the rate of speeding up of the object. The acceleration of a body in free fall in a vacuum in the earth’s gravitational field is 9.806 m per second (i.e. 32.174...

In physics, acceleration is defined as the rate of change of velocity, or, equivalently, as the second derivative of position (with respect to time). It is thus a vector quantity with dimension length/time². In SI units, acceleration is measured in...

Acceleration is perhaps one of the most misunderstood practices in education, especially with respect to its potential consequences for students who experience it. Before discussing the myths that have grown up around acceleration, we should define what it is and describe some of...

Hypersonic flight has become the premier area for aerospace research in the United States. This renewed interest follows in the wake of the 1986 announcement of a joint National Aeronautics and Space Administration-department of Defense program directed at building and flying a transatmospheric...

The $1.4 billion Spallation Neutron Source facility, though still powering up, has established a new mark as the world's most powerful accelerator-based source of neutrons for scientific research.The Oak Ridge National Laboratory announced Thursday that the SNS's neutron beam reached 183 kilowatts on Aug. 11,...

South Korea's economic growth accelerated in the fourth quarter on strength in exports and manufacturing, the Bank of Korea said Friday, with economists expressing optimism the country can weather a possible global slowdown.Gross domestic product expanded 5.5 percent in the October-December quarter compared with the...

Using physics principles, the acceleration of a moving object is calculated.