# 2.01 Kinematics

Kinematics is the study of motion. In kinematics we describe the nature of an object's motion but we are not concerned with the cause of this motion (this will be covered later in the section on "dynamics"). In this section we will initially deal with motion in one dimension (i.e. forwards/backwards along a straight line). (In later sections "projectile motion" we will analyse motion in two dimensions.) We will generally be limited to examples involving constant velocity or constant acceleration (however when considering "terminal velocity and drag forces" we will briefly touch on limited examples where acceleration changes).

After completing this chapter you should be able to:

• Define the term displacement and describe the difference between displacement and distance
• Define the terms speed, velocity and acceleration
• Describe the difference between instantaneous and average values
• Describe the difference between vector and scalar quantities and give examples of each