NAME: ________________________

# ← CH.1 - Displacement, Velocity, & VectorsTest

### Question Limit

of 13 available terms

### 4 Multiple Choice Questions

1. A quantity WITHOUT a direction; length, time, temp, mass and density are included
2. a vector quantity that embraces both spd and direction of motion

Avg. velocity = vector displacement / time taken
3. sin = opp/ hyp
cos = adj/ hyp
tan = opp/ adj
4. have a magnitude of 1 and are boldfaced and topped with a caret
unit vectors i,j, and k are assigned to the x,y,and z axes respectively
ex:
unit vector 3i = 3 unit vector in the +x direction
unit vector -5k = 5 unit vector in the -z direction

Note: R = Rxi + Ryj +Rzk

### 4 True/False Questions

1. Distancewe use 'l' to denote distance. It is a scalar quantity

2. Instantaneous Speedlimiting value of avg. spd.
change in distance over time, as the change in time approaches zero
** slope of the line tangent to the dis. vs. time graph

3. Instantaneous VelocityAvg velocity for a time interval that approaches zero
*slope of the tangent line of the velocity vs. time graph

4. Tip to Tail MethodWhen adding vectors, place the tail of the 2nd vector at the tip of the first (and so on); you can add vectors in any order, and the resultant vector 'R' (w/ arrow on top) will still be correct