A trolley is positioned the top of a ramp, the summit being Xcm from the ground.
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A trolley is positioned the top of a ramp, the summit being Xcm from the ground. It is then released, rolling all the way down the ramp which is a set length, then comes in to contact with the ground and travels a distance of 2 meters before it passes a line. Once the trolley cleared the ramp we began timing, then once it reached the 2 meter waypoint we stopped the timer, by doing this we are able to determine the speed of the trolley. Based on existing scientific knowledge, I know that this experiment depends on...
performing the experiment on the actual ramp itself we could have eliminated a lot of this friction, but not all of it because that would be virtually impossible, this experiment also shows me that friction has a much stronger effect on material than I had originally expected. If the results had been more accurate we could have worked out a formula for the amount of energy lost through friction, but our results would need to be very accurate to calculate this and we have run out of time and do not have the sufficient materials to do this.

performing the experiment on the actual ramp itself we could have eliminated a lot of this friction, but not all of it because that would be virtually impossible, this experiment also shows me that friction has a much stronger effect on material than I had originally expected. If the results had been more accurate we could have worked out a formula for the amount of energy lost through friction, but our results would need to be very accurate to calculate this and we have run out of time and do not have the sufficient materials to do this.
We are trying to find out what factors affect frictions. Friction is the force that opposes motion, or makes it difficult an object to move across a surface. The amount of friction depends on the surface type and the force pressing two objects together. I am going to...
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The following shows the collision theory used to explain the effect of temperature and concentration Prediction: In this investigation I expect to find as I increase the temperature the reaction will take place faster. This is because as the temperature increases, it gives more energy to the sodium thiosulphate and...
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The aim of this experiment is to find out if the resistance of a piece of wire will change if we vary the length. To do this I will set up a circuit that will include an ammeter, a voltmeter and a piece of wire. The wire will be a...
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Apparatus The apparatus which I will need for my experiment is listed below: ?é?¬ Mulitmetre ?é?¬ 2 wires ?é?¬ 2 sets of crocodile clips Predictions The less free electrons the higher the resistance. As the temperature of the wire goes up the resistance...
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INTRODUCTION: In this coursework investigation, I will be doing a series of experiments to see how changing the length of a piece of wire affects the resistance of the wire. PREDICTION & BACKGROUND THEORY: I predict that as the length of wire becomes longer, the resistance...
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