Simple Machines Quiz

Machines help you do work by

• Decreasing the amount of work that must be done

• changing the size and/or direction of a force

• decreasing energy

• increasing energy

Levers turn around a

• fixed point called a fulcrum

• solid bar that rotates

• wheel attached to an axle

• sloping surface called an inclined plane

When you bite into an apple, your teeth act as what kind of simple machine?

• lever

• pulley

• wedge

• screw

An inclined plane is (Un plano inclinado es)

• 
• 
• 
• 

An screw is (Un tornillo es)

• 
• 
• 
• 

A wedge is (Un cuña es)

• 
• 
• 
• 

A pulley is (Un polea es)

• 
• 
• 
• 

A wheel and axle is (Un rueda y eje es)

• 
• 
• 
• 

A lever is (Un rpalanca es)

• 
• 
• 
• 

Which of the following makes work easier?

• wedge

• screw

• lever

• all of the above