True and Compass Bearings

Introduction to Bearings

In this video, the speaker introduces the concept of bearings and explains that it has nothing to do with actual bears. The focus is on compasses and directional points.

Understanding Compass Directions

• Compasses have four directional points: North, South, East, and West.

• A mnemonic "never eat soggy weet-bix" can be used to remember the order of these directions.

Types of Bearings

• There are two types of bearings discussed in this video: true bearing and compass bearing.

• True bearing is measured from North as a reference point.

• Compass bearing is first measured from either North or South, followed by directions East or West.

Exploring Angles and Bearings

The speaker explains how angles are represented in bearings using a circle with 360 degrees. They demonstrate examples of true bearings and compass bearings.

Circle Quadrants

• The circle representing angles is divided into four quadrants.

• Quadrant one is at the top right, quadrant two at the top left, quadrant three at the bottom left, and quadrant four at the bottom right.

True Bearing Example

• Using a true bearing, an angle can be measured from North around the circle.

• For example, an angle of 45 degrees would require moving 90 degrees from North (quadrant one) and then an additional 45 degrees to reach the desired angle.

Compass Bearing Example

• With a compass bearing, one first determines if they are closer to North or South.

• Then they give directions either East or West.

• For example, an angle of 45 degrees could be expressed as South 45 degrees East using a compass bearing.

More Examples of Bearings

The speaker provides additional examples to illustrate how true bearings and compass bearings are used to express angles.

True Bearing Example

• If an angle is 10 degrees away from North, using a true bearing, one would need to move 350 degrees around the circle to reach that angle.

• Therefore, the true bearing for this angle would be 350 degrees.

Compass Bearing Example

• When using a compass bearing, one first determines if they are closer to North or South.

• Then they give directions either East or West.

• For an angle that is 10 degrees away from North, the compass bearing could be expressed as North 10 degrees West.

These examples demonstrate how bearings are used to express angles and provide a clear understanding of both true bearings and compass bearings.