Pressure exerted by earth’s atmosphere.
Atmospheric pressure
CH 3. Force and Pressure
Define Atmospheric pressure .
The force exerted by the earth’s atmosphere per unit area of the earth’s surface is called atmospheric pressure.
Define Thrust.
The force acting normally on a surface is called thrust.
Define Pascal.
Pascal is defined as the pressure exerted on a surface area of one metre square by a thrust of one motion.
Define Pressure.
Pressure is defined as the thrust acting per unit area of a body.
What is the C.G.S. unit of Torque ?
The C.G.S. unit of Torque is Dyne-centimetre
What is the S.I. of Torque ?
The S.I. of Torque is Newton-metre.
Define Moment of a force .
It is defined as the product of the magnitude of the force and the perpendicular distance of the axis from the line of action of the force.
Define Rotational motion.
A Rotational motion is one which takes place about an axis of rotation.
Define Translational motion.
A translational motion is one which takes place along a straight line.