* Lever: A lever uses a pivot point (fulcrum) to change the direction of force. Imagine using a crowbar to lift a heavy rock. You push down on the crowbar, but the force is applied upward on the rock.
* Pulley: A pulley uses a wheel and a rope to change the direction of force. If you pull down on the rope, a pulley system can lift a weight upwards.
* Wheel and Axle: This combination allows you to apply a force in a circular motion to move something in a linear direction. Think about turning a steering wheel to move a car.
Let me know if you'd like more examples or explanation of how these simple machines work!
