I.reduce the amount of energy needed to perform a task
II.change the direction of the input force
III.reduce the size of the input force needed to perform a task
I and III only
its make our life easier
You use simple machines to make work (moving things) easier.
Simple machines are much easier to make than complex machines.
They make work easier
dik,
to make life easier
Some common questions about simple machines include: How do simple machines make work easier? What are the different types of simple machines? How do simple machines affect force and distance in work? How can simple machines be combined to create complex machines?
To make life easier.
its make our life easier
To gain a mechanical advantage.To make things easier.
Simply put, a simple machine makes the work much easier. Simple machines reduce the amount of force needed to do the work. A pulley, for instance, is a great example of a simple machine.
They make work easier or faster, but never both.