1-D Kinematics Review
Important Vocabulary
• Acceleration
Definition
Positive or Negative
Direction
Average vs Constant/Uniform
• Acceleration due to gravity
Is it ever zero?
On the x or the y?
Important Vocabulary
• Constant velocity
Definition
On the y?
Average velocity
• Speed
Definition
Important Vocabulary
• Displacement
Definition
Can displacement equal zero?
• Distance
Definition
Can distance equal zero?
Important Vocabulary
• Free Fall
Definition
Is it moving under constant acceleration?
Important Vocabulary
• Scalar
Definition
Examples
• Vector
Definition
Examples
Important Concepts
• Analysis of graphs
Position v Time Graph
Velocity v Time Graph
Slope of the graphs
• Direction of Velocity and Acceleration Vectors
When do they point in the same direction?
When do they point in opposite directions?
Important Concepts
• Path of Objects Thrown in the Air
Description of path
Value of velocity on the path
Value of acceleration on the path
• Dropped Objects
Known variables
Important Concepts
• Units
Displacement
Velocity
Acceleration
Kinematic Problems
• The value of acceleration due to gravity (g) on the
moon is 1.63 m/s2 .
(a) Would a ball that is dropped by an astronaut
hit the surface of the Moon with a greater, equal
or lesser speed than that of a ball dropped from
the same height to earth?
(b) Would it take the ball more, less or equal time
to fall?
Kinematic Problems
• A car with a velocity of 22 m/s is accelerated
uniformly at the rate of 1.6 m/s2 for 6.8
seconds. What is the final velocity of the car?
Kinematic Problems
• Determine the displacement of a plane that
experiences uniform acceleration from 66.0
m/s to 88 m/s in 12 seconds.
Kinematic Problems
• You throw a ball downward from a window at
a speed of 2.0 m/s. How fast will it be moving
when it hits the sidewalk 2.5 m below?
• If your throw the ball in problem #4 up instead
of down, how fast will it be moving when it
hits the sidewalk?