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Force
A push or pull that can cause an object to stop, move, speed up, slow down, or change direction.
what is a resultant force?
The net force obtained by adding forces in the same direction and subtracting forces in the opposite direction.
state newton's 1st Law
An object remains at rest or in uniform motion unless acted upon by a resultant force.
state newton's 2nd Law
The acceleration of an object is directly proportional to the resultant force acting on it.
what is centripetal Force
The force that acts towards the center of an object in circular motion to cause acceleration.
what is centre of Gravity
The point where the entire weight of a body appears to act.
what is friction
A force that opposes an object's motion, causing it to slow down.
what do you understand by the term extension
The change in length of a body, calculated as final length minus initial length.
state hooke's Law
The force applied on a body is directly proportional to its extension within the limit of proportionality.
what is spring Constant
The force per unit extension of a spring, denoted as k.
what is moments
The turning effect of a force about a point, calculated as force multiplied by perpendicular distance from the pivot.
describe pressure
The force acting per unit area, calculated as force divided by area.
describe liquid Pressure
The pressure exerted by a liquid on an object immersed in it, depending on depth and density of the liquid.
what is work Done
Work is done when an object moves in the direction of the applied force, calculated as force multiplied by distance.
describe power
The rate of transfer of energy, calculated as energy transferred divided by time.
describe energy
The capacity of something to do work, with various forms like kinetic, gravitational potential, elastic, chemical, nuclear, and internal energy.
Note 
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