Q: What simple machine consists of a bar that is free to move about a fixed point?

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Lever

A lever. The fixed point is called the fulcrum.

I think its a lever!?

A simple pendulum, ideally consists of a large mass suspended from a fixed point by an inelastic light string. These ensure that the length of the pendulum from the point of suspension to its centre of mass is constant. If the pendulum is given a small initial displacement, it undergoes simple harmonic motion (SHM). Such motion is periodic, that is, the time period for oscillations are the same.

The fixed point that is located in the center of a circle and is used as the guiding point to draw it is called the "point of origin".

Related questions

Lever

A lever is a simple machine that consists of a rigid bar that is free to move about a fixed point called the fulcrum. Levers are commonly used to lift or move heavy objects with less effort.

The fixed turning point of a simple machine is called the fulcrum. The fulcrum is the point around which the machine rotates or pivots to perform work.

A nutcracker is a lever, a type of simple machine. It consists of a rigid bar that pivots around a fixed point to help exert a greater force to crack open nuts.

A lever. The fixed point is called the fulcrum.

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 lever. It is a simple machine that consists of a rigid beam or bar that is supported at a fixed point and used to transmit force, typically to lift or move objects. The fulcrum is the point at which the lever pivots.

A nutcracker is a lever, which is a simple machine that consists of a rigid bar rotating around a fixed point called a fulcrum. When you squeeze the handles of a nutcracker, the force applied is transferred to the nut at the other end, allowing you to crack it open.

No, a pen is not a lever. A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. Pens do not typically function in this way.

Handlebars are a type of lever, which is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. In the case of handlebars, the rider applies a force to one end of the lever to control the direction of the bike.

A lever.

A lever is a simple machine but it is made out of a stiff bar that moves freely around a fixed point.