There are no moving parts, therefore it is not a machine. A chair is an object.
Pendulum-type
Answering "A simple 2.80 m long pendulum oscillates in a location where g9.80ms2 how many complete oscillations dopes this pendulum make in 6 minutes
A complex machine.
A train is not a simple machine.
A fulcrum is a part of a simple machine, the lever. Without the fulcrum what is left of the simple machine can no longer increase the applied force and is no longer a simple machine.
A pendulum.
A pendulum is a type of simple machine called a lever. It consists of a rod with a weight (bob) at one end and a pivot point at the other. The swinging motion of the pendulum results from the transfer of gravitational potential energy to kinetic energy.
A pendulum contraption is typically classified as a compound machine, as it combines multiple simple machines like a lever, a wheel and axle, and potentially a pulley system to function.
Pendulum-type
A pendulum is a type of simple machine known as an oscillating or swinging lever. It consists of a mass (bob) attached to a fixed point by a rod or string and utilizes the force of gravity to create a repetitive back-and-forth motion.
A simple pendulum exhibits simple harmonic motion
Compound pendulum is a physical pendulum whereas a simple pendulum is ideal pendulum. The difference is that in simple pendulum centre of mass and centre of oscillation are at the same distance.
A compound pendulum is called an equivalent simple pendulum because its motion can be approximated as that of a simple pendulum with the same period. This simplification allows for easier analysis and calculation of its behavior.
A simple pendulum has one piece that swings. A complex pendulum has at least two swinging parts, attached end to end. A simple pendulum is extremely predictable, while a complex pendulum is virtually impossible to accurately predict.
applications of simple pendulum
The simple pendulum can be used to determine the acceleration due to gravity.
A simple pendulum.