Mechanics definitions

Acceleration: the rate of change of velocity with time. It is a vector quantity with magnitude and direction.

Centre of mass: The point at which the force of gravity on a body is taken to act.

Range: Horizontal distance.

Displacement: The distance and direction an object moves between its starting and finishing positions. It is a vector quantity.

Work: Equal to F x s, where F is the force in Newtons and s is the distance travelled and is measured in Joules.

Energy: A scalar quantity associated with an object or system. Heat, light and sound are examples.

Power: The rate at which work is done.

Kinetic Energy: Energy due to the motion…