Machines

Robotic and manual machines

Digital and analog machines

Mechanical and electrical machines

Simple machines and complex machines

lever, pulley, inclined plane

hammer

wheelbarrow

screwdriver

A lever is a type of wheel that rotates around an axis.

A lever is a type of pulley used for lifting.

A lever is a tool for measuring weight.

A lever is a simple machine that amplifies force using a rigid bar and a fulcrum.

4

3

5

2

Wheelbarrow

Seesaw

Pulley

Scissors

To store energy for later use.

To measure the weight of objects.

To create friction for better grip.

The function of a pulley is to lift heavy objects and change the direction of force.

Pliers

Wheelbarrow

Hammer

Scissors

Both pulleys are used to change the direction of force only.

A fixed pulley can lift heavier loads than a movable pulley.

The main difference is that a fixed pulley does not move with the load, while a movable pulley moves with the load.

A movable pulley is always fixed in one position.

Saw

Hammer

Screwdriver

Knife

To create a flat surface for rolling objects.

To provide a stable base for construction.

To increase the speed of an object.

To reduce the amount of force needed to lift an object.