| A | B |
|---|
| machine | a device that makes work easier |
inclined plane,  | a simple machine with a sloping surface |
| mechanical advantage | the number of times a machine multiplies the force applied |
lever,  | a simple machine made up of a bar that turns around a fixed point |
pulley,  | a wheel around which a rope moves |
| wheel and axle | a simple machine made up of two wheels that turn around the same point |
| compound machine | a machine made up of two or more simple machines |
| wedge | a type of inclined plane that is used to push objects apart |
gear,  | a wheel with teeth |
screw,  | a type of inclined plane that can be used to raise or lower something |
| fulcrum | a fixed point around which a lever moves is called a |
| fixed pulley | one must pull a rope down to lift a load up with a |
| moveable pulley | When used the pulley moves with the load being lifted |
| larger wheel | When using a wheel and axle, generally force is applied to the |
| machines | make work easier, but don't lessen the amount of work to be done |
| closer | It is easier to lift a load, if the fulcrum is ... to the load |
| steep | It is easier to move a load up an inclined plane if the slope of the ramp is less ... |
knife,  | example of a wedge |
wheelbarrow,  | example of a lever |
swivel chair,  | example of a screw |
raising a bucket in a well,  | example of a wheel and axle |
| a gear, | what a bicyle chain goes around |
flag pole,  | an example of a pulley |
an ax,  | example of a wedge |
| a ramp | an example of an inclined plane |
a door knob is,  | an example of a wheel and axle |
| a winding staircase is | an example of a screw |
a seesaw is,  | is an example of a lever |
