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Experiment 2 Lab Report

1) Introduction: Explain the theory behind this experiment in a paragraph between 150 and 250 words. (2 Points)

Suppose you are using external resources; include the reference. It would be best if you had any relevant formulas and explanations of each term. You may use the rich formula tools embedded here.

Experiment 2 Lab Report

2) Hypothesis: In an If /Then statement, highlight the purpose of the experiment.

For instance: If two same shape objects with different masses are dropped from the same height, they will hit the ground simultaneously. (2 points)

Post-lab section:

3) Attach your analysis here, including any table, chart, or plot image. (3 Points)

4) Attach the image of any table, chart, or plot here. (4 points)

Each part is 2 points.

Table 1 and the calculation of the percent error.

Table 2 and the calculation of the percent error.

5) Attach the image of samples of your calculation here. (2 points)

Experiment 2 Lab Report

6) In a paragraph between 100 and 150 words, explain what you Learn. What conclusion can you draw from the results of this lab assignment? (2 points)

7) In one sentence, compare the results of the experiment with your Hypothesis. Why? (1 point)

8) Attach your response to the questions in the lab manual here. (4 points)

Question 1: 1 point

Question 2: 1 point

Question 3: 1 point

Experiment 2 Lab Report

What is the theory behind the experiment (with formulas and explanation)?,
What is your hypothesis in an “If/Then” format?,
What are the results and how are they analyzed (tables, charts, percent error)?,
What did you learn and conclude from the lab experiment?,
How do the results compare with your hypothesis and why?

Comprehensive General Answer (Template Format for Completion)

Student Name: [Your Name]
Pre-lab Section

1. Introduction (Theory – 150–250 words)
This experiment explores the principle of free fall and motion under gravity, specifically focusing on the relationship between distance, time, and acceleration due to gravity (g ≈ 9.81 m/s²). When an object is dropped from a certain height without initial velocity, it accelerates uniformly due to Earth’s gravity. The primary formula used is:

$t^2$

Where:

$d$ = distance fallen (m)
$g$ = acceleration due to gravity (9.81 m/s²)
$t$ = time (s)

This equation assumes negligible air resistance. The experiment aims to verify this theoretical relationship by measuring time taken by objects to fall certain distances and comparing calculated distances or times with actual measurements. It will also examine percent error between experimental and theoretical values to assess precision.

Reference:
Serway, R. A., & Jewett, J. W. (2020). Physics for Scientists and Engineers (10th ed.). Cengage Learning.

2. Hypothesis
If an object is dropped from a known height, then the time it takes to reach the ground can be predicted accurately using the formula $t^2$ , assuming no air resistance.

Post-lab Section

3. Analysis (Attach your data analysis, including charts and percent error)
[Insert a brief summary of analysis here, such as:]

Time and distance data recorded using stopwatch and meterstick.
Used motion equation to calculate expected time.
Compared measured vs. theoretical values.
Example of Percent Error:

$Percent Error=(∣Measured−Theoretical∣Theoretical)×100%text{Percent Error} = left( frac{|text{Measured} – text{Theoretical}|}{text{Theoretical}} right) times 100%$

4. Image Attachment Notes
(Use this as a checklist when submitting your lab file)

Table 1: Time vs. Distance (measured and theoretical)
Table 1 Percent Error Calculation
Table 2: Time vs. Distance (second set or different object)
Table 2 Percent Error Calculation
Charts/Plots: Graph of Distance vs. Time² (should show linearity)
Sample Calculations: Include one or more step-by-step examples

5. Sample Calculation Image
Make sure this image clearly shows formulas used, substitution of values, and final answers with units.

6. What I Learned (100–150 words)
Through this experiment, I learned how gravitational acceleration affects falling objects in a predictable manner. By measuring the time it takes for objects to fall known distances and comparing the results to theoretical values, I developed a better understanding of kinematic equations. The experiment also highlighted the importance of precise timing and accurate measurements. Small inconsistencies, such as reaction time or equipment errors, can result in noticeable percent errors. Overall, the lab confirmed the theory that, in the absence of air resistance, all objects fall at the same rate regardless of mass. This practical demonstration reinforced classroom concepts and improved my data analysis skills.

7. Hypothesis Comparison (1 Sentence)
The experimental results mostly supported the hypothesis, as the measured times closely aligned with theoretical predictions using $t^2$ , validating the uniform acceleration model.

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Experiment 2 Lab Report