When comparing the average speed results from part two of the lab and the definition of acceleration, you find similarities between the two. First, average speed is distance divided by time, and we use it to describe the motion of an object moving at changing speeds. We can see this from our lab results from the average speed of the marble traveling down the ramp, because it picks up speed. When the marble is released at the top of the ramp, the ball doesn’t have the same momentum as it does towards the end of the ramp.
Gravity and friction also affect the speed of the marble going down the ramp. Gravity affects it because it forces the marble down the ramp, which causes the marble to gain speed as it travels. When the tester first releases the marble to roll down the ramp, friction causes it to delay the pickup of speed right away. As we can see from the results of the marble’s average speed, it was slower when it was at the top of the ramp rather than towards the middle or the end.
This is why the marble picks up speed as journeys down the ramp.
As for acceleration, it is the rate at which velocity changes over time. An object accelerates when there is a change in speed, direction, or both. Because the marble gains speed as it travels down the ramp, it has acceleration. Although the marble only has a change in speed and not direction, we can still determine that acceleration occurred, due to the definition.
This relates to the lab results, because as we determined the marble gained speed as it advanced down the ramp. This is important because it tells us that as the marble traveled it was gaining speed, which led to positive acceleration. This is the comparison between the average speed in the lab and acceleration.
The first and second graphs are examples of a positive slope, which is where the slope and speed increase. We know the slope is positive, because the graphed line goes left to right and increases. If the slope was negative, the graphed line would go left to right and decrease. In this case the slope also equals the speed. My first graph, which is distance vs. time, shows the speed in the slope of the graphed line. My second graph is average speed vs. average time, this shows points that are averaged out and then I drew a best fit line through them. Neither graph showed constant speed, because both graphs demonstrate acceleration.
The first graph is showing acceleration, because as the distance decreased so did the average time. The y-axis is distance and the x-axis is the time. (Example: 100cm= distance; 3.16= average time, 20cm= distance; 1.78= average time). For the second graph I divided distance by average time, which was the y-axis. (Example: 90-70cm= distance; 0.79= average time, 90- 70=20, 20/0.79= 25.32; 25.32= average speed) The x-axis is average time. The reason the graphed lines look different is because the first graph was a distance vs. time graph, rather than plotting an average speed vs. average time graph, which is what the x and y-axis for the second graph. So the results are going to be different because were dealing with different units of measurement. This describes the graphs in part one and how they relate to the result in part two.
Remember! This is just a sample.
You can get a custom paper by one of our expert writers.
Get your custom essay
Helping students since 2015
Essay Writing Service Features
Our Experience
No matter how complex your assignment is, we can find the right professional for your specific task. Contact Essay is an essay writing company that hires only the smartest minds to help you with your projects. Our expertise allows us to provide students with high-quality academic writing, editing & proofreading services.
Free Features
Free revision policy
$10Free bibliography & reference
$8Free title page
$8Free formatting
$8How Our Essay Writing Service Works
First, you will need to complete an order form. It's not difficult but, in case there is anything you find not to be clear, you may always call us so that we can guide you through it. On the order form, you will need to include some basic information concerning your order: subject, topic, number of pages, etc. We also encourage our clients to upload any relevant information or sources that will help.
Complete the order form
Once we have all the information and instructions that we need, we select the most suitable writer for your assignment. While everything seems to be clear, the writer, who has complete knowledge of the subject, may need clarification from you. It is at that point that you would receive a call or email from us.
Writer’s assignment
As soon as the writer has finished, it will be delivered both to the website and to your email address so that you will not miss it. If your deadline is close at hand, we will place a call to you to make sure that you receive the paper on time.
Completing the order and download