A few factors Essay

Investigation A few factors (the gradient/height of ramp, the deal of the prey, friction, gravitational attraction, the faculty act on the object lens or the length of object) merchantman affect the concluding speed of an object at the end of the ramp. Planning I am going to do my investigation on mass of the object which I think it is one of the factors that willing affect the last speed of an object at the end of the ramp because when gravitational potency energy equals to mass eons gravity times height, so if mass is increased, the gravitational potential energy will increase in proportionally.I will do the investigate by adding weights on top of a wooden cart to increase the mass, and then I will time how long it takes to fall down from the ramp and calculate the final speed by Diagram Weight add to the cart (grams) 0 100 cc 300 400 Time (sec) 678 607 721 686 693 Weight add to the cart (grams) 500 600 700 800 900 Time (sec) 719 703 661 677 657 My experiment results are According to the results, mass does not affect the final speed of an object at the end of the ramp.I think this is because when something is dropped, it will transfer from gravitational potential energy to kenetic energy So I am going to change my investigation on the height of the ramp. I think height of the ramp will affect the final speed of an object when height of the ramp is increased, the gravitational potential energy will increase proportionally due to G. P. E. = mass x gravity x height Method of doing the experiment I am going to do it by utilize a ramp that I can increase the height. then(prenominal) I will release the cart at the top of the ramp and time how long it will take for the cart to come down.I will increase the height by 5cm each time (5cm, 10cm, 15cm, 20cm, 25cm and 30cm). I will take down the time thrice to get the average time of it because it is more reliable. Then I will blend out the average speed. I will divide the length of the ramp by the time taken and work out the final speed by doubling the average speed. The length of the ramp is one metre and the weight of the cart is 900 grams. I can see this a fair test by not pushing the cart, doing average on the time, and keeping the mass the same. Apparatus I will need.A fix to hold the ramp, A ramp, A wooden cart as the object and A stopwatch for timing for the experiment. Safety features I will make reliable it is safe by putting books at the end to stop the cart from bumping into others feet and I will make sure no one is standing earnest it. I will do the whole experiment on the ground because this can stop things from falling down the table and hit peoples feet. Diagram Evidence/results I have my experiment results after all of this and they are Height(cm) 5 10 15 20 25 30 mediocre Time(sec) 409 231.180 154 137 110 According to the results, there seems to be a trend. So, I think I will calculate the final speed. Height(cm) 5 10 15 20 25 30 Final speed(cm/s) 0. 489 0. 865 1. 111 1. 299 1. 46 1. 818 The trend is axiomatic now. It shows that whenever the height is increased, the time taken will decrease and the final speed of the cart will increase. From we calculate gravitational energy (mass x gravity/speedup x height), height seems to be one of the main factors that can affect the G. P. E. because as height increases, the G. P. E.will be affected by it.Example if an object with eonian gravity (x), constant mass (y) but falls from changing heights (5 and 10), the outcome will be 5xy and 10xy and this also proved that when the height is increased, the G. P. E. will increase. The forces of gravity pulls down on all objects have on Earth. If objects are allowed to fall, they accelerate downwards. Therefore, if an object is allowed to fall from a higher place, the gravity will pulls down the object with a greater force and the object will accelerate faster as it comes down.If the object falls from a higher place, there will be more time for the ob ject to accelerate, so the final speed of the object will be faster, and as the gravitational force is greater, the object is being pulled harder and quicker. Therefore, this explains wherefore an object will have a faster final speed at the end of the ramp whenever the height of the ramp is increased. At first, I did an experiment on mass of the object that the experiment doesnt work. I have found out that mass doesnt affect the final speed of an object.When an object is held at a certain point, gravitational potential energy is stored when it is dropped, it will transfer gravitational potential energy to kenetic energy. So that means Gravitational potential energy = kenetic energy Mass x gravity x height = 0. 5 x mass x velocity This shows that mass exists on two sides of the equation, that means it can be cancel out to simplified the equation. So the equation will become Gravity x height = 0. 5 x velocity That means mass does not affect the velocity on the right side of the equ ation.Graph I have also plotted a graph of height against final speed, and after that, I have drawn a line of beaver fit. The graph shows a straight line of best fit. The graph shows a straight line of best fit and this shows height and final speed are in direct proportion. This proves when the height of the ramp is increased, the final speed is increased and this means the object accelerates faster. Evaluations My results are quite accurate because on the graph, all of the results go very near the best-fit line.My results are quite reliable, as I do every height for three times and take the average of it. I can make the results more accurate by using a light sensor with the computer. This will be more accurate then using a stop watch because human need a time to react before their brain do what it is told to do which is the reaction time. I think my method of doing the experiment is quite good because I can get accurate results from it. I can improve it by putting the ramp more st able and firmer because the ramp keeps on sliding down the slide.I think the method of doing the experiment is quite good because it gives me a quite accurate result and it takes less than half an hour to finish the experiment. At first, I did an experiment on mass of the object that takes about 45 minutes but I got results that are not appropriate for my experiment. So I cursorily change the investigation on another topic. Although it wastes lots of time, I learn that mass of an object will not affect the final speed of a falling object.