Lab 7 Simple Pendulum
Title of the Experiment:
Student’s name:
Section SLN:
TA’s Name:
Week of the experiment:
Objectives: (3 points)
The purpose of this experiment is to learn some of the fundamentals of physics by measuring the time of oscillation of a pendulum. Amplitude, pendulum bob length, mass, and the value of g in the area are the four factors that need to be studied.
Experimental Data (3 points): Insert experimental graphs and obtain from the graphs all the experimental data that will be used for further calculations in Data Analysis.
State all values with appropriate units
PART 1. Period T vs Amplitude θ
Diameter of the bob ____________ ___________________
Density of the bob ________________________________
| Amplitude (°) | Total Time (10 swings, s) | Period (s) |
| 5 | ||
| 10 | ||
| 15 | ||
| 20 | ||
| 25 |
Relationship observed: As θ increases, period _____remains constant_____________
PART 2. Period T vs Mass
| Bob Material | Bob Mass | Total Time (10 swings, s) | Period (s) |
| Wood | |||
| Glass | |||
| Iron | |||
| Brass | |||
| Gold |
Relationship observed: As m increases, period _______ ___________
PART 3: Period T vs Length
| Pendulum Length (cm) | Total Time (10 swings, s) | Period (s) |
Relationship observed: As L increases, period _______increases___________
PART 4: How does the period depend on Gravity?
Moon
| Pendulum Length (units) | Total Time (10 swings, s) | Period (s) |
Asteroid Brian
| Pendulum Length (units) | Total Time (10 swings, s) | Period (s) |
Relationship observed: As g increases, period ________ __________
Data Analysis (10 points):
PART 1.
PART 3.
- From the slope calculate gravitational acceleration (g) and its uncertainty for Earth.
PART 4.
- Calculate g on asteroid Brian.
Results (3 points)
State all values in the table with the correct number of significant figures and appropriate units!
| Experimental g | Theoretical g | % discrepancy | |
| Earth | |||
| Asteroid Brian | |||
| Moon |
Discussion and Conclusion (10 points):
