Bearings & Direction Flashcard

Front

What is a true bearing?

Back

A true bearing is the direction of an object from a reference point, measured in degrees clockwise from true north.

Front

How do you convert a compass direction like N 76 W to a true bearing?

Back

To convert N 76 W to a true bearing, subtract 76 from 360 degrees: 360 - 76 = 284 degrees.

Front

What is the formula to find the eastward distance when given a bearing and distance?

Back

Use trigonometry: Eastward distance = Distance * cos(bearing angle).

Front

If a ship sails on a bearing of S60°E, how do you find the eastward distance?

Back

Convert S60°E to a standard angle: 60 degrees from the south is 30 degrees from the east. Use the formula: Eastward distance = 150 * cos(30°) = 86.6 km.

Front

What is the significance of bearings in navigation?

Back

Bearings help in determining the direction to travel from one point to another, essential for navigation.

Front

How do you calculate the northward distance from a bearing?

Back

Use trigonometry: Northward distance = Distance * sin(bearing angle).

Front

What is the bearing of 255 degrees in compass notation?

Back

The bearing of 255 degrees corresponds to W 75 S.

Front

If a plane travels 200 km on a bearing of 045°, how do you find the northward distance?

Back

Northward distance = 200 * sin(45°) = 141.4 km.

Front

What is the relationship between bearings and angles in navigation?

Back

Bearings are measured in degrees, where 0° is north, 90° is east, 180° is south, and 270° is west.

Front

How do you determine the distance traveled east when given a bearing and distance?

Back

Use the cosine of the angle: Eastward distance = Distance * cos(bearing angle).