AP Physics - Trig Basics

A vector is represented by

• a ray
• a line
• a circle
• a triangle

A vector represents

• direction only
• magnitude only
• both direction and magnitude
• Either direction or magnitude

The letter B on the diagram represents the ________.

• Head
• Tail
• length

This vector shows a displacement on ______

• y axis only
• x axis only
• Neither x or y axis
• Both x and y axis

The magnitude of the vector is

• 62 m
• 25^o

The direction of the vector is

• 62 m
• 25^o
• 25^o W of N
• 25^o N of W

When adding vectors, the vectors are connected

• in  a straight line
• Head to Tail
• in Right triangles
• In a triangle

Vector A is 23 m/s at 23^o E of N.  What trig function would you use to find the x component?

• sine
• cosine
• tangent
• Pythagorean

Vector A is 23 m/s at 23^o E of N.  What trig function would you use to find the y component?

• sine
• cosine
• tangent
• Pythagorean

What is the correct ratio?

• 20/12
• 12/20
• 12/16
• 16/12