Centimetre–gram–second system of units

The centimetre-gram-second (CGS) system of units is a way of measuring things like length, weight, and time. It's called CGS because it uses centimetres to measure length, grams to measure weight, and seconds to measure time.

So let's say you want to measure the length of your pencil in CGS units. You would take a ruler and measure the length of your pencil in centimetres (which is a unit of length). If your pencil is 10 centimetres long, that's its length in CGS units.

Now let's say you want to measure the weight of your pencil in CGS units. You would place your pencil on a scale and measure its weight in grams (which is a unit of weight). If your pencil weighs 5 grams, that's its weight in CGS units.

Finally, let's say you want to measure how long it takes you to draw something with your pencil. You would use a stopwatch to time yourself in seconds (which is a unit of time). If it takes you 30 seconds to draw your masterpiece, that's the amount of time in CGS units.

Overall, the CGS system is a simple way of measuring things using centimetres, grams, and seconds. By using these units, we can measure everything from the length of a pencil to the time it takes to write a story.