Unit 2: Kinematics In One Dimension

Question 1

Kinematics

Answer 1

The mathematical description of motion

Question 2

Uniform Motion

Answer 2

Straight-line motion in which equal displacements occur during any successive equal-time intervals

Question 3

Speed

Answer 3

How fast an object is moving, independent of direction

Question 4

Initial Position

Answer 4

The objects starting point in a problem

Question 5

Final Position

Answer 5

The ending point in the analysis

Question 6

Instantaneous Velocity

Answer 6

An objects speed and direction at a single instant of time t

Question 7

Turning Point

Answer 7

A point in the motion where a particle reverses direction

Question 8

Average Acceleration

Answer 8

The rate of change of velocity

aavg = delta vs/delta t

Question 9

Free Fall

Answer 9

The motion of an object moving under the influence of gravity only, and no other forces

Question 10

Free-Fall Acceleration

Answer 10

The length or magnitude of afree fall

g = 9.80 m/s^2 (free-fall acceleration)

Question 11

Instantaneous Acceleration

Answer 11

The instantaneous acceleration as is the slope of the line that is tangent to the velocity-versus-time graph at time t

ds = dvs/dt = slope of the velocity-versus-time graph at time t