TYPES OF SIMPLE MACHINES
• A tool that makes our work easier by helping us overcome a larger force (load) by applying lesser force (effort) is called a machine.
• Machines may be simple or complex.
• A simple machine uses a single applied force (effort) to overcome a single force (load).
Figure 42: Types of simple machines
• A complex machine consists of two or more simple machines working together.
Figure 43: Complex machines
• The six types of simple machines are: