I need a definition for Lines of force (8th grade science regents level, ny)
http://dictionary.reference.com/browse/line+of+force
thanks
You're welcome.
Lines of force, also known as magnetic field lines, are an important concept in physics, specifically in the study of magnetism. These lines help visualize the direction and strength of a magnetic field surrounding a magnet or a current-carrying wire.
To understand the concept of lines of force, you can follow these steps:
1. Start by understanding what a magnetic field is. A magnetic field is an area around a magnet or a current-carrying wire where magnetic forces can be felt.
2. Visualize the lines of force as imaginary lines that help describe the shape and direction of a magnetic field. They serve as a map of the magnetic field's behavior.
3. Imagine the lines of force emerge from the north pole of a magnet, curve around it, and reenter through the south pole. This pattern applies to all magnets.
4. Remember that the density of lines indicates the strength of the magnetic field. The closer the lines are to each other, the stronger the magnetic field is at that point.
5. Notice how the lines of force never cross each other. This is because magnetic field lines represent the direction a compass needle would point if placed at any given point in the field.
6. Understand that the lines of force form closed loops. This means they always start from one pole and return to the opposite pole.
7. Recognize that magnetic field lines can extend both inside and outside a magnet or a current-carrying wire, allowing for interaction with other magnets or conductors.
By following these steps, you should be able to grasp the concept of lines of force and understand how they help describe the behavior of magnetic fields. Remember, practice and experimentation are also essential components of fully comprehending this topic.