University:
Texas A&M University
Course:
PHY 182 | General Physics II
Academic year:

2025
Views:

452

Pages:

1
Author:

MojoMaker

Understanding How a Compass Works A compass is a simple yet effective tool used for navigation. The primary function of a compass is to align itself with the Earth's magnetic field, which is why it always points North-South. Let's break down the options provided in the question to determine the correct answer. Option A: The compass dial attracted to the Earth’s gravitational field. This option is incorrect because the gravitational field affects weight and the motion of objects, but it does not determine the direction that a compass points. Option B: The compass dial is attracted to the Earth’s magnetic field. This is the correct answer. The compass needle is made of a magnetized material. It aligns itself with the Earth's magnetic field, making it point towards the magnetic North. Option C: The compass dial is attracted to the Earth’s electric field. This option is also incorrect since the electric field is not a factor in the functioning of a compass. Electric fields can affect charged particles but do not influence the magnetic properties utilized in compass navigation. Option D: The compass dial is attracted to the Earth’s climate field. This is not applicable. Climate affects weather patterns but has no connection to magnetic orientation. Conclusion Thus, the correct answer is Option B: The compass dial is attracted to the Earth’s magnetic field. For Further Exploration: Wikipedia - Magnetism Science ABC - How Does a Compass Work? National Park Service - Understanding the Compass