Simple Machines

the fixed point on which a lever turns

the force that tends to keep a load from moving

something being moved by a machine

a simple machine that is a rigid bar that turns on a fixed point

the distance between each turn of the thread on a screw

a simple machine that is two inclined planes back to back

a combination of two or more simple machines, such as a bicycle

a pulley that moves along the load

a force that resists motion, caused by surfaces rubbing together

one of 6 simple tools that make work easier, including inclined planes, levers, wedges, screws, pulleys, wheels and axles