What are compound machines?

Compound machines are defined as systems that consist of two or more simple machines working together to perform a specific task. Simple machines include levers, pulleys, inclined planes, wedges, screws, and wheels and axles. By combining these simple machines, compound machines can multiply their mechanical advantage, making it easier to perform work.

For example, a bicycle is a compound machine that uses simple machines such as wheels and axles (for movement), levers (in the pedals), and gears (to increase speed). Each component plays a crucial role in how the overall machine operates, showcasing how the combined action of simple machines can lead to greater functionality.

This understanding is essential in fields like engineering and physics, as it highlights how various mechanics principles can be applied in constructing more complex devices designed for specific purposes.