Answer:
Step-by-step explanation:
What are simple machines?
Simple machines reduce effort or extend the ability to perform tasks beyond their abilities.
Why do we use simple machines?
Simple machines are used widely as they help humans and save time.
Simple Machine Examples:
- Machine
- Screw
- Wheel and axle - wheeled carry-on luggage
- Lever - see saw
- Pulley - flag poles
- Inclined plane
- Wedge - knife