One-Dimensional Kinematics Flashcards
What are they usually called, the displacement, velocity, and acceleration.
Descriptors
Is a scalar quantity that refers to “how much ground an object covered” during its motion.
Distance
Is a vector quantity that refers to “how far out of place an object is” ; overall change in position.
Displacement
Is a scalar quantity and described as “the rate at which an object covers distance”
Speed
________ is a vector quantity that refers to “how fast an object is moving and to what direction”.
Velocity
________ is defined as the rate of change of velocity
Acceleration
It is accelerating if it is:
- There is change in velocity of the object
- Change in direction of the object
- Both velocity and direction of the object changes
It is a type of motion with no motion,
d = 0
v = 0
a = 0
Zero Velocity
It is a type of motion that has no change in speed and direction
d = vt
v = constant
a = 0
Constant velocity
Constant change in speed but no change in direction
d = 1/2 at^2
v = at
a = constant
Constant Acceleration
What are the 3 types of motion?
Zero Velocity
Constant Velocity
Constant Acceleration.
Which type of motion stated above will fit the following situations example?
A. Falling lead from a tree
B. A runner with a speed of 7m/s
C. A car parked in a gasoline station
D. Earth revolving around the sun
E. Earth rotating on its own axis
F. A ball rolling down
G a book on a table
A. Constant acceleration
B. Constant Velocity
C. Zero Velocity
D. N/A
E. N/A
F. constant acceleration
G. Zero velocity
When can we say that an object is moving?
An object has moved when it is has covered a distance, had a speed, or had an acceleration relative to a frame of reference.
In zero velocity, what can we imply on the other descriptors of motion?
They are all zero.
When the acceleration of a given body is zero, can we provide exactly one inference about the objects motion
No, it can be either zero velocity or constant velocity.
