on my homework I put that it increases the force
Simple machines lets you trade force for distance, or the other way around. Or they change the direction of a force.
The simple machines - a lever for example - are usually designed so that you need less force. In compensation, you need to move the lever for a greater distance. This follows directly from the law of conservation of energy.
the safety precaution in using simple machines is to use it in a safety hand
by using simple machines
The tradeoff of simple machines lies in their ability to amplify force or speed while sacrificing other factors such as distance or control. For example, using a lever can increase the force applied to lift a heavy object, but it may require moving the lever over a greater distance. This means that while simple machines can make tasks easier, they often involve a compromise between the amount of effort exerted and the distance over which that effort is applied. Ultimately, the choice of machine depends on the specific needs of the task at hand.
Simple machines using pulleys and levers, make the work easier by using mechanical advantage. The input force is less than the output, but spead over a larger distance and time. Other machines harness engines and motors, to take over the human input. The motors and engines need a separate source of energy.
people have been using it forever
A compound machine combines two or more simple machines to perform work more efficiently than a single simple machine. By leveraging the advantages of different simple machines working together, a compound machine can multiply the input force or distance, making it easier to accomplish tasks that would be challenging using just one simple machine.
the six machines are hydrolic ect. etc. and compound is the first?
my results are that simple machines work by using force and some work.
What is the ‘cost’ for using a machine to increase force
Simple machines usually make work easier by lengthening the distance the object being moved travels. If you want to raise a box up 5 ft by using a pulley, you will actually have to move 10 ft of rope, if it is a single pulley. Likewise, if you use a ramp, you have to move it an overall greater distance along the incline just to get it to the same height.