physics investigatory project class 11 on friction

Sensor apps such as phyphox let you record data using sensors that are built into many smartphones, including an accelerometer which measures motion. In your lab notebook, write down your results in a data table like this one.

How do you think the period of a pendulum is related to its length? Will a longer pendulum have a longer period than a shorter one?.What are some common uses for pendulums?.What is a pendulum and what causes it to swing?.The period of a pendulum is mathematically related to the pendulum's length. In the example of a kid being pushed in the swings at a playground, this is the time it takes the kid to be pushed and then return back for another push. A pendulum's period is the time it takes the pendulum to swing back to its original position. In this science fair project, you will investigate how the period of a pendulum is related to the pendulum's length. Today, pendulums have many applications, including measuring local gravity and helping guide ships and aircrafts. One of the first known pendulum uses was around 100 C.E., when a Chinese scientist, Zhang Heng, used it to detect distant earthquakes in a device called a seismometer. However, pendulums were being used for centuries before this.

using perhaps the most famous pendulum, Foucault's pendulum. Among other applications, they can show that the Earth is rotating! This was done in the mid-1800s C.E. But pendulums can do more than entertain and help us tell time. We see pendulums in other areas of our lives as well, such as in long-case clocks, commonly known as grandfather clocks. These playground swings are examples of pendulums.

Physics investigatory project class 11 on friction