The Compass (Grade 10 NSC Matric Physical Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the two main components of a compass?
What are the two main components of a compass?
Magnetised needle and pivot
Why does a compass needle point towards magnetic north?
Why does a compass needle point towards magnetic north?
It aligns with Earth's magnetic field
What is the difference between geographic poles and magnetic poles?
What is the difference between geographic poles and magnetic poles?
Geographic = rotation axis; magnetic = field
How far is magnetic north from geographic north?
How far is magnetic north from geographic north?
Approximately
What generates Earth's magnetic field?
What generates Earth's magnetic field?
Flowing liquid metals in outer core
How often does Earth's magnetic field completely reverse direction?
How often does Earth's magnetic field completely reverse direction?
Approximately every 200,000 years
What is lodestone?
What is lodestone?
Naturally magnetised iron oxide
Which animals use Earth's magnetic field for navigation?
Which animals use Earth's magnetic field for navigation?
Pigeons, bees, and sea turtles
What does the solar wind consist of?
What does the solar wind consist of?
High-energy protons and electrons
Where are aurorae primarily visible?
Where are aurorae primarily visible?
High northern and southern latitudes