Simple Machines

An inclined plane with one or two sloping sides is a 

• pulley
• wedge
• lever
• fulcrum 

A bar that is free to pivot, or turn, about a fixed point. 

• wheel and axle 
• pulley
• fulcrum
• lever

The amount of work done in a certain amount of time is known as 

• work
• effort force
• resistance force 
• power

The force applied to a machine is the 

• screw
• resistance force 
• effort force
• work 

Two or more simple machines used together is a 

• compound machine 
• wheel and axle 
• block and tackle 
• mechanical advantage 

A measure of how much of the work put into a machine is changed into useful output work by the machine is known as 

• efficiency
• effort force 
• resistance force
• work

A measure of how much of the work put into a machine is changed into useful output work by the machine is known as 

• efficiency
• effort force 
• mechanical advantage
• resistance force

The fixed point on the lever is called 

• load
• resistance
• bar
• fulcrum

The transfer of energy that occurs when a force makes an object move is known as 

• effort
• potential 
• kinetic 
• work 

A device that makes doing work easier. 

• compound machine 
• wedge
• machine
• pulley