Physics Trolley Investigation

Task
I will be finding out the affect of change in height of a ramp on the velocity of the trolley dropped from the ramp.
Variables
1.Mass and shape of trolley.
2.Height of the ramp.
3.Force with which the trolley is dropped.
4.Position on the ramp that the speed of the trolley is taken
5.Length of ramp
6.Surface of the ramp and the trolleys wheels
Key Variables
Output variable - Speed of the trolley
Key Input variable - Height of the ramp
Prediction
I predict that as the height of the ramp increases so will the velocity of the trolley. …