Simple Machines

a force acting on an object to make it move

• ball

• work

• wheel

• motion

a force applied to a simple machine is

• work

• resistance force

• effort force

• motion

the force that works against effort

• resistance

• motion

• effort

• work

a bar that turns on a point

• wheel

• lever

• fulcrum

• screw

the pivot point of a lever

• screw

• bend

• joint

• fulcrum

example of a lever

• door

• seesaw

• broom

• all of these

a grooved wheel with a chain or rope wrapped in the groove is a

• pulley

• wheel and axle

• lever

• fulcrum

this is found on a car

• pulley

• wheel and axle

• both

• none

a gear is a wheel with

• pulleys

• toothlike projections

• ropes

• fulcrums

a wheel with a rod running through the middle of the wheel make

• pulleys

• gears

• a wheel and axle

• inclined plans