1. Simple Machine: A simple machine has few or no moving parts. Example: Lever etc. 2. Compound Machine: When two or more simple machines are put together, they make a compound machine. Example: Wheel barrow etc.
Pulleys are used in:1. Flagpoles 2. Window blinds 3. Clothing line
The wheel and axle is a simple machine that reduces the friction involved in moving an object, making the object easier to transport.
An inclined plane has a sloping surface that reduces the force needed to raise a load and make our work easier.
Examples in our daily life: Slides, rooftops, stairs and ramps.
Advantages: 1. Friction is used to slow things. 2. It is used to produce heat. 3. It also allows us to walk.
Disadvantages: 1. Friction can slow the speed of objects. 2. Too much heat can cause fire. 3. It can also wear things. Such as shoe sole.
A pulley could be used to pull the water up to a window.
A ramp could be used to reduce the force needed to raise the load.