All Flashcards
What is the difference between average velocity and instantaneous velocity?
Average velocity: Displacement over a time interval. Instantaneous velocity: Velocity at a specific point in time.
What is the difference between displacement and distance?
Displacement: Change in position with direction. Distance: Total length of the path traveled, regardless of direction.
Compare and contrast position vs. time graphs and velocity vs. time graphs.
Position vs. Time: Slope is velocity. Velocity vs. Time: Slope is acceleration, area is displacement.
How does the sign of acceleration relate to the direction of motion?
Positive Acceleration: Acceleration is in the positive direction, increasing velocity in that direction. Negative Acceleration: Acceleration is in the negative direction, decreasing velocity in that direction.
Differentiate between velocity and acceleration.
Velocity: Rate of change of position. Acceleration: Rate of change of velocity.
Define 'motion diagram'.
A motion diagram shows an object's position at different times, illustrating its movement.
Define 'kinematic equations'.
Equations that describe the motion of an object with constant acceleration, relating displacement, velocity, acceleration, and time.
Define 'acceleration'.
The rate of change of velocity with respect to time.
Define 'displacement'.
The change in position of an object; a vector quantity.
Define 'velocity'.
The rate of change of displacement with respect to time; a vector quantity.
What is the effect of gravity on an object near Earth's surface?
It causes a constant downward acceleration of approximately .
What is the effect of a constant positive acceleration on an object's velocity?
The object's velocity increases linearly with time in the positive direction.
What is the effect of a constant negative acceleration on an object's velocity?
The object's velocity decreases linearly with time, or increases in the negative direction.
What is the effect of a non-zero slope on a position vs. time graph?
It indicates that the object has a non-zero velocity.
What is the effect of a non-zero area under a velocity vs. time graph?
It indicates that the object has a non-zero displacement.