## How do you calculate the work done by a pendulum?

Energy in a Pendulum The work done on the mass is equal to the GPE gained. GPE can be calculated by multiplying the mass, the acceleration due to gravity, and the height change. Once the mass is let go, it starts to swing.

What is the work of a pendulum?

A pendulum works by converting energy back and forth, a bit like a rollercoaster ride. When the bob is highest (furthest from the ground), it has maximum stored energy (potential energy).

Is there work in a pendulum?

At all points in the trajectory of the pendulum bob, the angle between the force of tension and its direction of motion is 90 degrees. Thus, the force of tension does not do work upon the bob. Since there are no external forces doing work, the total mechanical energy of the pendulum bob is conserved.

### What is the formula for a swinging pendulum?

Pendulums are used to regulate the movement of clocks because the interval of time for each complete oscillation, called the period, is constant. The formula for the period T of a pendulum is T = 2π Square root of√L/g, where L is the length of the pendulum and g is the acceleration due to gravity.

How do you calculate work tension?

Tension is a force that works in medium lengths, especially those that are flexible, such as rope or cord. Tension force remains a gravitational force. If the body is moving upwards then the tension will be referred to as the T = W + ma. When the body goes down, the thickness is the same as T = W – ma.

What is the work done by a spring?

The work done on a spring stores elastic potential energy U s U_s Us​U, start subscript, s, end subscript in the spring until the spring goes back to its original length. Therefore, U s U_s Us​U, start subscript, s, end subscript is equal to the work done and also to the area under the curve.

#### How do you draw a pendulum in physics?

What to do:

1. Tie a weight onto the end of the piece of string.
2. Make a loop at the other end of the string.
3. Screw the hook into the piece of wood and balance the wood between the backs of two chairs.
4. Put the loop of string over the hook.
5. Start the weight swinging and time how long it takes to make 20 swings.

Why does gravity do work on pendulum?

In short, gravity does do work on a pendulum for the simple reason that the height of the pendulum bob changes. The work that gravity does on a pendulum depends only on the total displacement of the pendulum bob as measured from the ground (height of the bob) and is given by the formula W=mgh.

How does a pendulum clock work simple?

Each swing of the pendulum a pallet releases a tooth of the escape wheel. The wheel rotates forward a fixed amount until a tooth catches on the other pallet. These releases allow the clock’s wheel train to advance a fixed amount with each swing, moving the hands forward at a constant rate, controlled by the pendulum.

## What is the formula for work done by friction?

The work done by friction is the force of friction times the distance traveled times the cosine of the angle between the friction force and displacement; hence, this gives us a way of finding the distance traveled after the person stops pushing.