All Flashcards
What is displacement?
The change in an object's position, calculated as final position minus initial position:
Define average velocity.
The rate of change of displacement over a time interval:
What is average acceleration?
The rate of change of velocity over a time interval:
Define instantaneous velocity.
The velocity of an object at a specific moment in time. It is the average velocity over an infinitesimally small time interval.
What is meant by 'object model simplification'?
Treating objects as points, ignoring size, shape, and internal configuration for simplified analysis.
What is the effect of a changing velocity?
The object experiences acceleration.
What happens when there is a constant velocity?
Acceleration is zero.
What is the effect of a non-zero acceleration?
The velocity of the object changes (either in magnitude or direction).
What is the effect of an object changing direction?
The object is accelerating, even if its speed is constant.
What is the effect of an object speeding up?
The object is accelerating.
What are the differences between average and instantaneous velocity?
Average velocity: displacement over a time interval. Instantaneous velocity: the velocity at a specific moment in time.
What are the differences between average and instantaneous acceleration?
Average acceleration: change in velocity over a time interval. Instantaneous acceleration: the acceleration at a specific moment in time.
What is the difference between distance and displacement?
Distance: Total path length traveled. Displacement: Change in position (straight line from start to end).
Differentiate between using differentiation and integration in kinematics.
Differentiation: Used to find velocity from position and acceleration from velocity. Integration: Used to find velocity from acceleration and position from velocity.
What is the difference between speed and velocity?
Speed: Magnitude of velocity (scalar). Velocity: Rate of change of displacement (vector).