What simple machines are in a skateboard?

I meant what simple machines are on a skateboard.

To identify the simple machines in a skateboard, let's first understand what simple machines are. Simple machines are basic mechanical devices that are used to make work easier by changing the direction or magnitude of a force. There are six types of simple machines: lever, pulley, wheel and axle, inclined plane, wedge, and screw.

In the case of a skateboard, we can identify a few simple machines:

1. Lever: The lever in a skateboard can be found in the form of the board itself. It acts as a lever arm, allowing the rider to pivot or balance by applying force at different points on the board.

2. Wheel and axle: The wheel and axle combination can be observed in the wheels of the skateboard. The central axle passes through the wheel, allowing it to rotate freely. This mechanism enables the skateboard to roll smoothly.

3. Inclined plane: Though less obvious, an inclined plane is present in the skateboard's design. The curved shape of the skateboard deck resembles a slight incline, which helps facilitate tricks and maneuvers by providing leverage and control.

It's important to note that a skateboard does not contain all six types of simple machines. The simple machines present in the skateboard are primarily lever, wheel and axle, and inclined plane.