Angular motion about the longitudinal axis...

Question 1 / 2066636eec28f7522a1c51bfcb

Question 1 of 2066636eec28f7522a1c51bfcb

Angular motion about the longitudinal axis of a vessel is known by which term?

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Question 1 of 20

66636eec28f7522a1c51bfcb

Angular motion about the longitudinal axis of a vessel is known by which term?

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🔍 Key Concepts

• Six degrees of freedom of ship motion (surge, sway, heave, roll, pitch, yaw) • Difference between motion along an axis (linear) and motion about an axis (rotational) • Definitions of longitudinal, transverse, and vertical axes on a vessel

💭 Think About

• First, identify which way the longitudinal axis runs on a vessel (bow to stern or side to side?). • Decide whether each answer choice describes linear motion (straight-line movement) or rotational motion (rocking/turning). • Match the type of motion (rocking side to side, nodding bow up/down, sliding sideways, etc.) with its proper technical term.

✅ Before You Answer

• Be sure you know which motions are rotations (not straight-line movements). • Confirm in your notes which ship motion corresponds to rotation about the ship’s length (bow‑to‑stern) axis. • Eliminate any terms that refer to motion along an axis rather than motion about an axis.

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Question 1 of 20

Angular motion about the longitudinal axis of a vessel is known by which term?

Surge

Roll

Sway

Pitch

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