Brújula

The video explains how a compass works by aligning its magnetic needle with Earth's magnetic poles. It describes the compass's components: a magnetic needle, a pivot, and a marked disc. The Earth's magnetic field, strongest at its poles, attracts the compass needle, allowing it to point north. This helps users determine directions on Earth.

What are the three main components of a compass?

• A needle, a pivot, and a disc

• A needle, a spring, and a dial

• A magnet, a string, and a base

• A needle, a magnet, and a string

How does the Earth behave in terms of magnetism?

• It has magnetic poles but no magnetic field

• It only has a magnetic field but no poles

• It behaves like a magnet with poles and a magnetic field

• It has no magnetic properties

Where is the Earth's magnetic field strongest?

• At the equator

• In the northern hemisphere

• At the magnetic poles

• In the southern hemisphere

Why does a compass needle point north?

• Because it is attracted to the sun

• Because it aligns with the Earth's magnetic poles

• Because it is heavier on one side

• Because it is affected by gravity

What additional information can a compass provide besides north?

• The time of day

• The weather conditions

• The other cardinal directions

• The altitude