Simple machines

Simple Machines Definitions to know: Work – done when an applied force causes an object to move in the direction of the force Energy – ability to cause change; can change the speed, direction, shape, or temperature of an object Load – the weight being... More

Simple Machines Definitions to know: Work – done when an applied force causes an object to move in the direction of the force Energy – ability to cause change; can change the speed, direction, shape, or temperature of an object Load – the weight being lifted by the simple machine Effort – effort is the force placed on the simple machine to move the load. Also called applied force or input force What are simple machines? Simple machines are tools that make work easier They have few or no moving parts These machines use energy to work Do work with one movement Make our work easier by letting us use less mechanical effort to move an object Simple machines make work easier for us by allowing us to push or pull over increased distances Use the idea of spreading force over distance: if you push further, you can use less force You are doing the same amount of work — it just seems easier You move an object a greater distance to accomplish the same amount of work. There s a trade–off of energ Less