What is a simple machine? a. any object that makes work easier when a single force is applied by changing the strength or the direction of that force b. any combination of objects that magnifies the input force so that the output force is greater c. any object or group of objects, that when connected to a source of electricity, make work easier d. any object, that when connected to a fossil fuel source, makes work easier

A. any object that makes work easier when a single force is applied by changing the strength or the direction of that force. The point of a simple machine is to decrease the amount of force needed to complete a task.

For example, an inclined plane makes it easier to push something up instead of trying to go up stairs with something. Another simple machine is a pulley. A pulley is a simple machine that helps to raise heavy weights.