# Lab 2 physic simple pendulum Yet the process of resolving gravity into two components along axes that are perpendicular and tangent to the arc remains the same. You might think of the bob as being momentarily paused and ready to change its direction. Yet, as illustrated by the TME bar, the total amount of mechanical energy is conserved.

When the bob is displaced from equilibrium and then released, it begins its back and forth vibration about its fixed equilibrium position. The height of the bar is proportional to Lab 2 physic simple pendulum amount of that form of energy.

It is a quantity that depends upon both mass and speed. So as the bob swings to the left of its equilibrium position, the tension force is at an angle - directed upwards and to the right. As the pendulum bob does the back and forth, the velocity is continuously changing. The kinetic energy possessed by an object is the energy it possesses due to its motion.

A simple pendulum does not consist of a spring. Two types of potential energy are discussed in The Physics Classroom Tutorial - gravitational potential energy and elastic potential energy.

As the bob moves towards its equilibrium position, it decreases its height and decreases its potential energy. Take the difference between your stop time for example, And the velocity is greatest when the displacement of the bob is least. So when the bob is at the equilibrium position the lowest positionits height is zero and its potential energy is 0 J.

The form of potential energy possessed by a pendulum bob is gravitational potential energy. And what is the restoring force for a pendulum. The diagram at the right shows the pendulum bob at a position to the right of its equilibrium position and midway to the point of maximum displacement.

The Sinusoidal Nature of Pendulum Motion In the previous part of this lessonwe investigated the sinusoidal nature of the motion of a mass on a spring.

As it does, its height is increasing as it moves further and further away. This can be explained by the fact that as the bob moves away from the equilibrium position, there is a restoring force that opposes its motion. We will concern ourselves with possible variables. The diagram below shows the results of the force analysis for several other positions. In our discussion, we will ignore the influence of air resistance - a third force that always opposes the motion of the bob as it swings to and fro.

We will collect this data by using a stopwatch and a slow motion camera to accurately find the point the pendulum reaches a full cycle. Since the motion of the object is momentarily paused, there is no need for a centripetal force. Let's suppose that we could measure the amount that the pendulum bob is displaced to the left or to the right of its equilibrium or rest position over the course of time.

The further the bob has moved away from the equilibrium position, the slower it moves; and the closer the bob is to the equilibrium position, the faster it moves. This was the practice used in the analysis of sign hanging problems and inclined plane problems.

At this instant in time, there is no net force directed along the axis that is perpendicular to the motion. The restoring force is only needed when the pendulum bob has been displaced away from the equilibrium position. To keep the experiment simple, we only put one gram mass on the bottom of each of the three strings and we started each trial at a beginning amplitude.

Determine the mean diameter of the simple pendulum bob using the vernier calipers. Find the mean radius of the bob and represent it using ‘r’. Attach a string to the bob. The length of the pendulum, l is adjusted by measuring a length of (l-r) from the top of the bob.

Now the real lab procedure from steps 12 to 18 can be followed to. Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, the strength of gravity, and the amplitude of the swing. Observe the energy in the system in real-time, and vary the amount of friction. Measure the. Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, the strength of gravity, and the amplitude of the swing.

Observe the energy in the system in real-time, and vary the amount of friction. Measure the. As mentioned above, the pendulum equation that we want to test is valid only for small angles of $\theta$.

For the first measurement, you will test this expectation by finding the period of oscillation at 3 different angles of release: $\theta=15^{\circ}$, $30^{\circ}$, and. SIMPLE PENDULUM EXPERIMENT // The period of pendulum is affected by the length of the thread.

Hypothesis: The longer the length of a simple pendulum, the longer will be the period of oscillation we manufacture physics lab equipment such as, Electrical Instruments, Heat Laboratory Equipment. Lab 2 physic simple pendulum
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PHYSICS: SIMPLE PENDULUM EXPERIMENT