What is the difference between bar pendulum and simple pendulum?

A pendulum consists of an object suspended along an axis so that it is able to move back and forth freely. In a simple pendulum the dimensions of the object in suspension is significantly smaller than the distance from the centre of gravity of the object to the axis of suspension.

What is difference between bar pendulum and Kater’s pendulum?

Kater’s pendulum is just a double-ended bar pendulum which uses a clever trick to avoid the necessity of doing a painstaking survey of where all the mass is in the bar to calculate the effective length, which is what you need to use the pendulum equation to find g from T.

What is use of bar pendulum?

History of the Pendulum Although, strictly speaking, the pendulum’s function is to regulate movement and provide measurement, anything that hangs from a focal point and swings in an arc provides a picture of the pendulum influence.

What is called compound pendulum?

In pendulum. A compound pendulum has an extended mass, like a swinging bar, and is free to oscillate about a horizontal axis. A special reversible compound pendulum called Kater’s pendulum is designed to measure the value of g, the acceleration of gravity.

Why bar pendulum is more accurate than simple pendulum?

A bar pendulum has less degrees of freedom than a “ball on a string” type of pendulum, therefore it should be more precise.

Which one out of bar and Kater’s pendulum is more accurate and why?

The point of suspension also is not accurately determined in a simple pendulum. So once a near equality in time period is obtained on both sides of the centre of gravity of the metallic bar, determining the length of the pendulum becomes more accurate, and so does determining the acceleration g due to gravity.

Why is Kater’s pendulum more accurate?

Its advantage is that, unlike previous pendulum gravimeters, the pendulum’s centre of gravity and center of oscillation do not have to be determined, allowing a greater accuracy.

What is a compound bar pendulum?

A compound pendulum, also known as a physical pendulum, is a swinging rigid body that is free to rotate around a fixed horizontal axis. Because a compound pendulum, like a swinging bar, has extended mass, it is referred to as a bar pendulum. The bar pendulum is made up of a one-meter-long metallic bar.

What is compound pendulum with example?

A compound pendulum has an extended mass, like a swinging bar, and is free to oscillate about a horizontal axis. A special reversible compound pendulum called Kater’s pendulum is designed to measure the value of g, the acceleration of gravity.

What are the types of compound pendulum?

Four Types Of Pendulums

• Compound or Physical Pendulum – A rigid body suspended from a fixed horizontal axis.
• Simple or Mathematical Pendulum – Similar to the compound or physical pendulum but the mass is concentrated in a single point and oscillates back and forth in the vertical plane.

Why are bar pendulums better?

Advantages of bar pendulum over simple pendulum: is rigid, so motion is confined (mostly) to 2D; the string of the simple pendulum may not remain straight at maximum angular displacements, but there is no such problem with the bar pendulum (again assuming that it remains fairly rigid over the small angular …

Why bar pendulum is better than simple pendulum?

https://www.youtube.com/watch?v=v6OWf-mTl7c