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Lab Report Motion With Constant Acceleration

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12.5: Unit 8 Lab- Accelerated Motion

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• Page ID 17821

• Lawrence Davis
• Umpqua Community College via OpenOregon

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• lab sheet and writing utensil
• spreadsheet and graphing software
• for distance learners, access to online forums, videos, and help features for the spreadsheet software will likely be necessary
• 20 g mass with hook
• “frictionless” track + cart
• motion sensor + computer with sensor control and analysis software (self-tracking motion cart optional).

Preparation

Before we begin creating and testing a hypothesis regarding forces and motion, we need to familiarize ourselves with basic motion concepts and the equipment we will use to measure motion.

First set up the motion sensor and analysis program so that it displays the position, velocity, and acceleration vs. time graphs of your motion as you move in front of the sensor.

Next, create each of the following graphs by moving in front of the motion sensor. Have your instructor sign off on each graph as you progress.

Constant Position

Create a constant position graph. Instructor signature:____________

Describe how you had to move to create this graph.

Describe the velocity and acceleration graphs created by your motion.

Constant Velocity

Create a constant velocity graph. Instructor signature:____________

Describe the position and acceleration graphs created by your motion.

Constant Acceleration

Create a constant acceleration graph. Instructor signature:____________

Describe the position and velocity graphs created by your motion.

Accelerated Motion

Now we will use the cart and track to test a hypothesis about how position, velocity, acceleration and net force are related. Setup the cart and track and motion sensor (or the self-tracking cart) to measure the position, velocity, and acceleration of the cart as it moves down the track.

Test Method

Now build the following setup in in order to use the force of gravity on a hanging weight to accelerate the cart. Use a hanging mass roughly 1/5 of the cart mass. The cart will run on a smooth track to minimize friction. (We know the track/cart setup is not completely frictionless, so we are making the assumption that the friction is small enough not to significantly affect our results).

Measure the cart mass and record here (in Kg ):

Measure the hanging mass and record here (in Kg ):

Observation

Gravity is acting on both the cart and hanging mass, but when the hanging mass isn’t there the cart doesn’t accelerate. Therefore it seems like only gravity on the hanging mass contributes to causing acceleration.

If only the hanging mass contributes to the gravitational force causing acceleration of the system, does the cart’s mass even matter at all?

If we include only the hanging mass in calculating the force causing acceleration, but include both masses in calculating the acceleration caused by that force, then we will (circle one):

Correctly predict the acceleration of the cart

Incorrectly predict the acceleration of the cart

According to our hypothesis, how big is the force causing acceleration of the system?

Use the force you found above and Newton’s Second Law to calculate the expected acceleration of the cart + hanging mass, using their combined mass as the system mass.

Use the force you found above and Newton’s Second Law to calculate the expected acceleration of the cart + hanging mass, using only the hanging mass as the system mass.

Using the same amount of hanging mass as in your calculations above, release the hanging weight + cart while measuring the position, velocity, and acceleration of the cart.

The force that is accelerating the cart + hanging mass system is the force of gravity on the hanging mass, which is constant. Should the measured acceleration also be constant? Is it constant? Explain.

Use the software to find the average value of the acceleration and record here:

Conclusions

Which of your predictions is correct, the one that uses the combined mass for the system mass, or only the hanging mass as the system mass?

Does your experiment support or refute your hypothesis? Explain.

PH220 – Week 1 Lab

One-Dimensional Motion

Before you can start working on the labs you must set up an account at KET Education and download the labs to your computer. Please follow these directions to access your physics labs .

Welcome to the Lab component of Physics I.   All our labs use simulations of real laboratory equipment that are combined with measurement and graphing tools to allow you to explore, observe and analyze experiments.   Each week you will complete one or two laboratory exercises using a simulation program and then use your results to write a formal lab report.   Each of the experiments will be based around one main topic.

For this week’s lab you will use the Dynamics Track simulation.   Download and read through the following user guide to familiarize yourself with the simulation.

·         Dynamics Track Simulation User’s Guide

Download the instructions for two laboratory activities you will complete this week.   You may wish to print them out and use to collect and organize your results.

·         Velocity Lab

·         Acceleration Lab

Use the data and answers to the laboratory questions to help you write your lab report.   Your lab report should focus on motion graphs (x-t, v-t and a-t) for an object experiencing constant velocity and an object experiencing constant acceleration.   You should describe and analyze these graphs and explain what you can learn from them and how they are related to each other.

The lab report will have the following six sections.   Include section headings in bold at the beginning of each section. The lab report should focus only on the experiments found on the Acceleration worksheet, Parts I, A-E.   Include relevant data, graphs and calculations.

1.      Introduction – Explain the purpose of this laboratory and what results you expect to see in this experiment.

2.      Background – Discuss the concepts that form the foundation for this lab.   You should address what you learned from the weekly lectures and readings that are related to the lab.

3.      Methodology – Describe the apparatus that was used in the experiment(s) and how it was used in performing the experiments.   Also explain what tools were available within the laboratory that allowed you to collect or analyze the data.

4.      Data – Enter the data that you collected in the lab.   You can use screen shots from the Data Table within the Pivot Interactives labs.   Data should be clearly labeled with physical quantities and units.

5.      Analysis – Analyze your results.   If your Data Table included Calculated Columns, then the equation you used in those calculations should be included and described here.   Any graphs created with the data go in this section, as well as your interpretations of their meaning.   Were your results consistent with your original expectations?  

6.      Conclusion – Provide a concise summary of the results of your experiment(s) – what you did, what you found and what it means.    Speculate on possible sources of experimental error and/or uncertainty within the experiment.   Describe an additional experiment that could be run with this equipment to expand on what you’ve learned OR explain how you could use this equipment to answer another real-world problem.

Use these Lab Templates:

View your assignment rubric .

Lab: Motion with Constant Acceleration Assignment: Lab Report Write your lab report Someone please help me do this, ill give brainliest

Expert-verified answer.

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Variations in the angle of inclination or the mass of the cart could be investigated further to investigate the impact on acceleration and further validate the principles of constant acceleration motion.

Objective: The goal of this lab experiment was to investigate the motion of an item with constant acceleration and to examine its velocity as a function of time.

Smooth, inclined plane

Cart or tiny wheeled object

Stopwatches and timers

Measuring tape or meterstick

Procedure :

Set up the inclined plane at a 45-degree angle () to the horizontal surface. Check that the plane is smooth and clear of obstacles.

Place the cart or small wheeled object at the bottom of the inclined plane.

Using a meterstick or measuring tape, determine the height (h) and length (L) of the inclined plane.

Ascertain that the cart is at rest at the starting point, which is located at the bottom of the inclined plane.

As soon as the cart is freed and begins to move, start the stopwatch or timer.

Calculate the time (t) it takes the cart to reach each place along the inclined plane. To ensure reliable data gathering, repeat the experiment numerous times.

Determine the time intervals (Δt) between each position for velocity analysis

Position (m) Time (s) Time Interval (Δt) (s)

0.0                   0.00           -

0.5                   0.50        0.50

1.0                   0.75        0.25

1.5                    1.10              0.35

2.0                    1.50        0.40

Calculate the average velocity between each position by dividing the position change by the time interval (x/t).

Create a graph that plots average velocity (V_avg) versus time (t).

A straight line emerges from the graph of average velocity against time, demonstrating that the cart's motion was subject to continuous acceleration along the inclined plane. The slope of the graph reflects the acceleration (a) of the cart.

Conclusion :

The experiment successfully demonstrated motion along an inclined plane with constant acceleration. The graph of average velocity vs time revealed important information about the cart's speed, with a linear relationship suggesting steady acceleration. This experiment emphasizes kinematic principles and the significance of using velocity-time data to understand the motion of objects under constant acceleration.

Hence, variations in the angle of inclination or the mass of the cart could be investigated further to investigate the impact on acceleration and further validate the principles of constant acceleration motion.

To learn more about Acceleration , here:

brainly.com/question/2303856

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Fan Speed Observations of Position vs. Time Graphs

The slope is curved and it increases as you go up . The points start off close but they spread out as the time increases.

The speed increases quicker than the graph for low speed. The graph is less curved than the one for low speed. Also, the points spread out faster than they did for low speed as the time increases.

The Graph has a smaller curve then the low and medium speed. Also, the points are the furthest apart. The slope is not as spaced out as it was for the rest of the speed graphs.

Explanation:

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