The crane is a pulley
Chat with our AI personalities
A crane is a compound machine that combines multiple simple machines, such as pulleys and levers, to lift and move heavy objects. It typically relies on the principles of mechanical advantage to make it easier to lift loads.
A roof is not a simple machine. It is a structure built to provide shelter and protection from the elements.
A pin is classified as a type of fastener and not a simple machine. It is often used to secure two materials together.
A tack is a type of wedge, which is a simple machine that is used to push things apart or hold things together.
A projector screen is a type of lever simple machine when it is manually pulled down or rolled up. It can also be considered a pulley simple machine if it is motorized to retract or extend the screen.
A bulb is not a simple machine; it is an electrical device that produces light. Simple machines include levers, pulleys, inclined planes, screws, wedges, and wheels and axles.