NASA | Magnetometry 101

The video tutorial explains how magnetic fields can be visualized using a compass and iron filings. It describes how NASA scientists use magnetometers on satellites to study planetary magnetic fields, revealing insights about planets like Jupiter and Mars. The tutorial highlights that while some planets have magnetic fields similar to Earth's, others like Mars do not. The sun also has a magnetic field affecting the solar system. Despite advanced technology, these discoveries are made using tools akin to an upgraded compass.

What tool can be used to visualize a magnetic field around a bar magnet?

• Iron filings

• A thermometer

• A ruler

• A voltmeter

What device do NASA scientists use to measure a planet's magnetic field?

• A magnetometer

• A hygrometer

• A barometer

• A seismometer

What is the primary function of a magnetometer?

• To measure humidity

• To measure sound waves

• To measure temperature

• To measure magnetic fields

Which planet in our solar system does not have a global magnetic field?

• Venus

• Jupiter

• Mars

• Earth

Which celestial body generates a magnetic field that affects the entire solar system?

• The Sun

• Saturn

• Mars

• The Moon