Investigating what effects the acceleration of an object; will its mass or the force acting on it effect the acceleration.

Secondly, I will add a weight on to the trolley and a piece of ticker tape will be attached to the end of the trolley like the last experiment, which will go through the ticker timer once the trolley finishes you can see on the ticker tape that the dots will be closer together not farther apart like the last experiment. I will do this three times adding more weight each time, which will make the trolley go slower than the last.

Fair test:

I will change the mass upon the trolley, which will and slow it down depending on the mass. I will also change the force pulling the trolley, which will fasten it up depending on the force.

I will keep the trolley the same size for each force experiment, also the force for each of the mass experiment so it will not influence the results.

I will measure the mass and weight to ensure that they are the same in my experiments, if they are not it could influence the results.

To make a safe test I will handle the weights with care so they are fall out of my hand and injure any one.

Prediction:

In the experiment I am about to complete, I predict that if I add more force to an object it will increase the acceleration. A force of two Newton's will pull an object harder than a one Newton weight, increasing the acceleration, and if I add three Newton's it will pull an object even harder giving an enhanced acceleration than before because the more force the faster it will go increasing the acceleration. I also predict that if you add a mass onto an object it will decrease the acceleration. A mass of two kilogram's will slow an object down more than one kilogram, giving a decrease in acceleration, and if I add three kilograms, it will slow down an object further than before.