How does a quartz crystal keep a watch on time?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How does a quartz crystal keep a watch on time?

The Big Idea

Tick, tick, tick! Many watches keep time with a tiny crystal. Let's look inside a quartz watch.

Tuning Fork

Step one: Tuning Fork. Inside a quartz watch is a tiny slice of quartz shaped like a tuning fork. It's smaller than a grain of rice.

Vibrating

Step two: Vibrating. A battery sends electricity through the quartz, which makes it vibrate 32,768 times every second. A small circuit counts those vibrations and turns them into one tick each second.

Super Steady

Step three: Super Steady. Because the crystal vibrates so steadily, a quartz watch keeps excellent time. It may drift only a few seconds in a month.

A Closer Look

Let's take a closer look! The battery powers it. Quartz vibrates. The circuit counts. Hands tick.

Quick Facts

Quick facts! The number 32,768 is a power of two, which makes counting easy for circuits. Shaped like a tuning fork. Vibrates super steadily. Drifts only seconds.

Think Like a Scientist

Now, think like a scientist! Watch a second hand for one minute. Count 60 ticks. Start a stopwatch at the same time. Compare them. Do they match?

Outro

A quartz watch has a tiny tuning-fork slice of quartz that vibrates 32,768 times each second when electricity flows through it. A circuit counts the vibrations into ticks, so the watch keeps excellent time. Science is amazing! What will you discover next? Every question is a new adventure, so keep wondering and keep exploring with me! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!