# Dynamics Quiz #1

## Terms

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- position vector
- used to specify the location of the particle at any given instant
- Particle
- has a mass but negligible size and shape
- average speed
- total distance traveled divided by elapsed time
- average velocity
- displacement divided by time
- 3 equations
- can only be used when acceleration is constant
- displacement
- change in position
- Mechanics
- a branch of the physical sciences that is concerned with the state of rest or motion of bodies subjected to the action of forces
- rectilinear motion
- motion along a straight line
- Statics
- concerned with the equilibrium of a body that is either at rest of moves with constant velocity
- distance
- the total length of the path over which the particle travels
- curvilinear motion
- motion along a curved path
- speed
- magnitude of velocity
- Dynamics
- deals with the accelerated motion of a body
- Kinematics
- study of the geometry of the motion
- Kinetics
- study of the forces that cause the motion