Week 19 Practice: Geomagnetism (Y)

The Earth is Not a magnet.

• True

• False

What is the cause of a compass needle pointing North and the Northern Lights?

• magic

• Earth's geomagnetic field

• The Sun

• The Moon

The core of Earth is made of

• gold

• silver

• iron and nickel

• carbon

Earth's magnetic field acts like a _________ protecting from particles from space and the Sun.

• shield

• accelerator

• triangle

The magnetic poles are fixed and do not move.

• True

• False

What is the primary cause of the Earth's geomagnetic field?

• Movement of molten iron and nickel in the Earth's outer core

• Solar winds and cosmic rays

• The Earth's atmosphere

• The rotation of the Earth

What is the role of the Earth's geomagnetic field?

• To protect the Earth from harmful solar winds and cosmic rays

• To regulate the Earth's temperature

• To control the Earth's weather patterns

• To maintain the Earth's gravitational pull

How are the geomagnetic poles different from the geographic poles?

• Geomagnetic poles are where the magnetic field lines are vertical

• Geomagnetic poles are fixed and do not move

• Geomagnetic poles are the same as the geographic poles

• Geomagnetic poles are located at the equator

Velocity is both ____ and _____. 

• speed , direction 
• direction, mass
• volume, density 
• direction, magnitude 

Which of the following represents a velocity?

• 40 m
• 40 m north
• 40 m/s
• 40 m/s north