unit 5 Polar coordinates

Remembering: What is Polar Coordinate System?

• A system of coordinates in which the position of a point is specified by the angle between the positive x-axis and the line from the origin to the point
• A system of coordinates in which the position of a point is specified by its x and y values
• A system of coordinates in which the position of a point is specified by its z and y values
• A system of coordinates in which the position of a point is specified by its x and z values

Remembering: How does the Polar Coordinate System specify the position of a point?

• By the angle between the positive x-axis and the line from the origin to the point
• By its x and y values
• By its z and y values
• By its x and z values

Remembering: How is the Polar Coordinate System used in CNC Machine Tools Programming?

• To specify the position of a point
• To specify the velocity of a point
• To specify the orientation of a point
• To specify the acceleration of a point

Understanding: What is the advantage of using Polar Coordinate System in CNC Machine Tools Programming?

• It allows the tool path to be defined with respect to the work piece geometry
• It allows the tool path to be defined with respect to the tool itself
• It allows the tool path to be defined with respect to the machine coordinate system
• It allows the tool path to be defined with respect to the world coordinate system

Understanding: How does the Polar Coordinate System improve the efficiency of CNC Machine Tools Programming?

• By allowing the tool path to be defined with respect to the work piece geometry
• By allowing the tool path to be defined with respect to the tool itself
• By reducing the number of calculations required to define the tool path
• By allowing the tool path to be defined with respect to the machine coordinate system

Applying: How does the Polar Coordinate System help in creating a circular path in CNC Machine Tools Programming?

• By allowing the tool path to be defined in terms of radius and angle
• By allowing the tool path to be defined in terms of x and y values
• By allowing the tool path to be defined in terms of z and y values
• By allowing the tool path to be defined in terms of x and z values

Analyzing: How does the Polar Coordinate System help in defining an irregular shaped tool path in CNC Machine Tools Programming?

• By allowing the tool path to be defined in terms of radius and angle
• By allowing the tool path to be defined in terms of x and y values
• By allowing the tool path to be defined in terms of z and y values
• By breaking down the irregular shaped tool path into a series of straight line segments