Unit 6, Section 2: Speed, Velocity, and Acceleration Flashcards
speed
the distance an object travels per unit of time
speed = ?
speed=distance/time
SI unit for speed
m/s
instantaneous speed
the speed you are going in a particular instant of time
average speed = ?
average speed = total distance/total time
____ goes on the x-axis
(on a speed graph)
time
____ goes on the y-axis
(on a speed graph)
distance
slope
the angle of a line on a graph
variable
a thing that changes relative to another variable
velocity
the speed at which an object travels in a given direction
SI unit for velocity
m/s
change in velocity can involve…
a change in speed, direction, or both
acceleration
the rate at which velocity changes
Acceleration = ?
(direction change)
Acceleration = (final velocity- initial velocity)/time
SI unit for acceleration
m/s^2