... will be directly proportionate to the amount of masses applied. Also if you double the weight you double the deflection. My reasons for this are that the amount of pressure applied will push the ruler down this is due to the gravitational force, which is being applied. This will cause the ruler to bend and stretch due to its elasticity. "The momentum of a body does not change unless it is acted on by an external force" In my experiment the external force would be the weights which I was applying. "If the deflection was doubled then the deflection would also double" This is possible to see if u look at my graph. Method I am going to set my apparatus up as I have drawn on the diagram. The measurements I am going to use are Newton for the weights on the ruler and cm for the measurements of deflection ...

See this essay or coursework document in full right now