TRUE or FALSE. Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion.
TRUE
Speed depends on direction. TRUE or FALSE.
FALSE
Can you have a negative slope/acceleration?
Yes
What is slope?
Steepness of a line on a graph
What is the only difference between speed and velocity?
Velocity has direction
The speed of a train car if its distance-time graph indicates that it traveled 200 meters in 25 seconds.
What is 8 meters per second?
What is the slop of a position vs. time graph?
Velocity
In physics, ___________ is defined as a change in position over time.
Motion
What is the slope of a velocity vs. time graph?
Acceleration
What word refers to something that is not moving with respect to an observer that can be used to detect motion?
Frame of Reference
What is something that shows both size and direction and is represented by an arrow?
A vector
Positive acceleration would be shown how on a graph? How about negative acceleration?
Positive-upward slope
Negative-downward slope
A train moves from rest to a speed of 25 m/s in 30.0 seconds. What is its acceleration?
0.833 m/s^2
A horizontal line on either graph we talked about has a slope of what?
0