A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. What two simple machines make up the wheelbarrow?
The wheelbarrow is made up of two simple machines: the lever and the wheel and axle. The handles of the wheelbarrow act as a lever, allowing the user to lift the load with less force. The wheel and axle make it easier to push the load over a distance.
The two simple machines that make up a wheelbarrow are the lever and the wheel and axle.
To understand how the lever works in a wheelbarrow, let's break it down. A lever is a simple machine that consists of a rigid bar or plank that rotates around a fixed point called a fulcrum. In the case of a wheelbarrow, the handles act as the lever. When you lift the load using the handles, you apply an upward force at one end (the load side) of the lever while the fulcrum (the wheel) acts as the pivot point. This enables you to lift and balance the load with less effort compared to lifting it directly.
Now, let's talk about the wheel and axle. The wheel is a circular device that allows for smooth movement and reduced friction. In the case of a wheelbarrow, the wheel attaches to an axle, which is a rod that runs through the center of the wheel. The axle helps the wheel rotate freely and supports the weight of the load. By using the wheel and axle, you can easily push the load across a distance with minimal friction.
So, in summary, the lever (handles) helps lift and balance the load, while the wheel and axle enable the wheelbarrow to be pushed across a distance.