What is the difference between magnetic...

Question 1 / 2707066636ef128f7522a1c521f26

Question 1 of 2707066636ef128f7522a1c521f26

What is the difference between magnetic heading and compass heading called?

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Question 1 of 27070

Q

What is the difference between magnetic heading and compass heading called?

🔍 Key Concepts

• Relationship between magnetic heading, compass heading, and compass deviation • Difference between variation (chart vs magnetic) and deviation (magnetic vs compass) • Meaning of compass error as a combination of variation and deviation

💭 Think About

• Think about what causes your magnetic compass to read differently from the magnetic heading—where do those errors come from? • Which term describes the effect of the ship’s own magnetism on the compass, and which term describes the difference between true north and magnetic north? • If you start at true heading and step your way down to compass heading, at which step does this specific difference occur?

✅ Before You Answer

• Be clear on the sequence: True → (variation) → Magnetic → (deviation) → Compass • Identify which option is the difference between true north and magnetic north, and which is the difference between magnetic heading and what the compass shows • Confirm which term is the overall error of the compass, not just one part of it

Question 1 of 27070

Q

What is the difference between magnetic heading and compass heading called?

A

Drift

B

Compass error

C

Deviation

D

Variation

Question 1 / 2707066636ef128f7522a1c521f26

Question 1 of 2707066636ef128f7522a1c521f26

What is the difference between magnetic heading and compass heading called?

Back

Question 1 of 27070

Q

What is the difference between magnetic heading and compass heading called?

🔍 Key Concepts

• Relationship between magnetic heading, compass heading, and compass deviation • Difference between variation (chart vs magnetic) and deviation (magnetic vs compass) • Meaning of compass error as a combination of variation and deviation

💭 Think About

• Think about what causes your magnetic compass to read differently from the magnetic heading—where do those errors come from? • Which term describes the effect of the ship’s own magnetism on the compass, and which term describes the difference between true north and magnetic north? • If you start at true heading and step your way down to compass heading, at which step does this specific difference occur?

✅ Before You Answer

• Be clear on the sequence: True → (variation) → Magnetic → (deviation) → Compass • Identify which option is the difference between true north and magnetic north, and which is the difference between magnetic heading and what the compass shows • Confirm which term is the overall error of the compass, not just one part of it