All Flashcards
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).
How do you find instantaneous velocity from a position function?
Take the derivative of the position function with respect to time: .
How do you find instantaneous acceleration from a velocity function?
Take the derivative of the velocity function with respect to time: .
How do you find displacement from a velocity function?
Integrate the velocity function with respect to time over the desired time interval: .
How do you find velocity from an acceleration function?
Integrate the acceleration function with respect to time over the desired time interval: .
What is the process for simplifying objects in kinematics?
Model objects as point particles, ignoring size and shape, and focusing on mass and charge.