How do you make a perfect pendulum?

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

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Are pendulums used today?

Pendulums are used in many engineered objects, such as clocks, metronomes, amusement park rides and earthquake seismometers. In addition, engineers know that understanding the physics of how pendulums behave is an important step towards understanding motion, gravity, inertia and centripetal force. Does a pendulum ever stop? A pendulum can only stop when its gravitational potential is lowest and it no longer has energy driving it. (This is of course assuming the pendulum is allowed to swing until brought to a stop by friction, rather than being stopped by an applied force.)

Subsequently, how do you use a clock?

How do you read a clock with your hand?

Then, how can i learn to watch?

How does a pendulum move? A pendulum works by converting energy back and forth, a bit like a rollercoaster ride. As it accelerates down toward its lowest point (its midpoint, nearest the ground), this potential energy is converted into kinetic energy (energy of movement) and then, as the bob climbs up again, back to potential energy.