What is the discussion of simple pendulum?
A simple pendulum consists of a mass m hanging from a string of length L and fixed at a pivot point P. When displaced to an initial angle and released, the pendulum will swing back and forth with periodic motion.
What is the purpose of the simple pendulum experiment?
The goal of this experiment was to determine the effect of mass and length on the period of oscillation of a simple pendulum. Using a photogate to measure the period, we varied the pendulum mass for a fixed length, and varied the pendulum length for a fixed mass.
What do we conclude from the simple pendulum experiment?
The surprising conclusion – the pendulum traverses a longer distance in a shorter time, than in a shorter distance, and its period is shorter. There are a number of reasons why Galileo thought that the period remains constant. One factor which Galileo failed to consider is friction.
How can you make a pendulum experiment more accurate?
Improve the accuracy of a measurement of periodic time by:
- making timings by sighting the bob past a fixed reference point (called a fiducial point )
- sighting the bob as it moves fastest past a reference point. The pendulum swings fastest at its lowest point and slowest at the top of each swing.
How does a pendulum work?
A pendulum is an object hung from a fixed point that swings back and forth under the action of gravity. When the swing is raised and released, it will move freely back and forth due to the force of gravity on it.
How do you make a pendulum lab?
An example pendulum experimental setup.
- Measure the period of your pendulum. Pull the weight of the pendulum back about 30 degrees.
- Repeat steps 1–2 for your other pendulum lengths. Record all your results in your data table.
- For each pendulum length, calculate an average period.
- Analyze your data.
What are the precautions for simple pendulum?
1) The bob of pendulum should be displaced with a small angle. 2) The amplitude of the oscillation of a simple pendulum should be small. 3) Fans should be switched off to reduce the air resistance. 4)The simple pendulum should be oscillate in a vertical plane only.
What factors affect the period of a pendulum?
The mass and angle are the only factors that affect the period of a pendulum. b. The mass, the angle and the length are the three variables affecting the period.
How do you do a simple pendulum experiment?
Cut a piece of a string or dental floss so that it is about 1 m long. Attach a small object of high density to the end of the string (for example, a metal nut or a car key). Starting at an angle of less than 10º, allow the pendulum to swing and measure the pendulum’s period for 10 oscillations using a stopwatch.
What kind of energy does the pendulum have?
An ideal pendulum system always contains a stable amount of mechanical energy, that is, the total of kinetic plus potential energy. As the pendulum swings back and forth, the balance between the two types of energy changes constantly. At some points in its swing, the pendulum has more kinetic energy.
What are the parts of a pendulum?
What are the parts of a pendulum? A pendulum consists of a fixed point, string or wire, and a bob or weight.
What is a pendulum lab?
Pendulum Lab. Purpose. The purpose of this lab is to prove mass has no affect on the period of a pendulum only the length of the pendulum affects the period of the pendulum.
What is a simple pendulum?
Simple Pendulum. A simple pendulum is one which can be considered to be a point mass suspended from a string or rod of negligible mass. It is a resonant system with a single resonant frequency.
What is the significance of the simple pendulum?
Uses and Applications of the Simple Pendulum In a pendulum clock, a common household item. In older seismometers, a pendulum with a stylus at its bottom was connected to a frame. In a pendulum gravimeter, a pendulum is used to measure the local gravity. Foucault’s pendulum is a device to measure the rotation of the earth. In a metronome, a device used by musicians.
What is simple pendulum in physics?
noun Physics. a hypothetical apparatus consisting of a point mass suspended from a weightless, frictionless thread whose length is constant, the motion of the body about the string being periodic and, if the angle of deviation from the original equilibrium position is small, representing simple harmonic motion (distinguished from physical pendulum).
What is the simple pendulum experiment?
Initial Setting Up the Pendulum Experiment The pencil should be firmly taped to the top of the tabled, leaving about 4cm hanging over the edge. Next make a loop in your string to fit on the end of the pencil but do not make it too tight fitting. At the other end of your string tie your hook and slide one of the nuts onto the hook.