What are angles?

• rotation around an axis

• Occurs by rotational motion

• An angle is composed of two lines that intersect at a point called the vertex.

• An angle is composed of one line that intersect at a point called the vertex

What can we use to measure angles? Select all correct answers.

• Ruler

• Tape measurement

• Goniometer

• 2D motion analysis

What are the types of angles?

• Relative angle

• Non-relative angle

• Absolute angle

• Longitudinal angle

What units can be use to measure angles?

• radian

• revolution

• newton

• degrees

What is angular displacement?

• the sum of all angular changes undergone by a rotating body

• change in angular position

• the rate of change in angular position

• the rate of change in angular velocity

What is angular acceleration?

• •the sum of all angular changes undergone by a rotating body

• • change in angular position

• the rate of change in angular position

• the rate of change in angular velocity

What is tangential acceleration?

• component of acceleration of angular motion directed along a tangent to the path of motion

• The acceleration of a body in angular motion can be resolved into two perpendicular linear acceleration components.

• component of acceleration of angular motion directed toward the center of curvature

Which of the following terms describes the angle formed between the longitudinal axes of two adjacent body segments?

• the static angle

• the relative angle

• the absolute angle

• all of the above

5. Which of the following is referred to as the "quantity of angular motion" possessed by a body?

• angular displacement

• angular velocity

• angular acceleration

• angular momentum

Centripetal force is related to which of the following?

• radial acceleration

• tangetial acceleration

• both A and B

• none of the above