What are gears and springs?

Gears and springs are parts that help things move or change direction, just like wheels on a toy car or a slinky when you stretch it.

Gears are like interlocking teeth, they help transfer motion from one place to another. Imagine two bicycle wheels connected by a chain: when you pedal, the first wheel turns, and the chain moves, making the second wheel turn too. Gears work in a similar way, if one gear spins, it can make another gear spin next to it. This helps machines change speed or direction.

Springs are like coiled up rubber bands, they push back when you press them. Think about a toy that bounces when you squeeze it: the spring inside gets squished, and then it pops back out, making the toy jump. In real life, springs help things like cars bounce smoothly over bumps or make watches tick.

Together, gears and springs can make machines move in clever ways, just like how your favorite toys come to life!