1
Q
Define average speed
A
the rate of change of distance calculated by the formula average speed=distance/time
2
Q
Define period
A
The amount of time one cycle or one event takes to occur; the length of time taken for one wavelength to pass a given point; in circular motion, period refers to the time taken to complete one revolution
3
Q
Define centripetal acceleration
A
The acceleration experienced by any object moving in a circular path directed towards the centre of motion.
4
Q
Define centripetal force
A
The force acting on an object travelling in a circle that constantly either pulls or pushes the object in towards the centre of motion.
