Gear ratio

Gear ratio is like how much work you need to do to make something move. Think about a bicycle. When you pedal your bike, you are pushing the pedals to make the wheel spin. The wheel moves because of the gears on the bike. The gears change how much work you need to do to make the wheel turn. For example, if you had a big gear on your bike, it would be easier to pedal and the wheel would turn faster, but you might have to pedal a lot to get the wheel to turn. A small gear would cause the wheel to turn slower, but it would require less work to make it turn. Gear ratio is a measurement that compares the size of the gears on your bike and how fast the wheel will turn for a given amount of work.