Simple Machines Vocabulary

Mechanical Systems and Simple Machines

Inclined Plane

• An inclined plane is also known as a ramp.
• It facilitates moving an object to a higher level.
• The distance traversed along the inclined plane exceeds the height to which the object is raised.
• A longer inclined plane reduces the force required to lift an object.
• Function: Decreases the force needed to lift an object.

Screw

• A screw is essentially an inclined plane wrapped around a pole.
• Uses: Lifting objects or fastening them together.
• Examples:
  • Swivel chairs
  • Jar lids
  • Screws

Wedge

• A wedge is a V-shaped object used to split objects apart.
• It functions in one direction only.
• When splitting an object, the wedge moves a long distance into the object, creating a small gap.
• Requires minimal work or force.

Levers

• A lever is a simple mechanical system aiding in lifting, pushing, or pulling objects more easily.
• Facilitates moving a large load with a small effort.
• Effort is applied to the lever arm, which moves around the fulcrum.

Mechanical Advantage

• Mechanisms utilize forces to make work easier.
• Mechanical advantage (MA) is how much easier a mechanisms makes work.