Motion
This is needed to describe motion effectively
Frame of Reference
Speed and velocity are usually measured in these units
meters per second
Objects in free fall are subjected to this acceleration
Gravity
This is the total distance traveled divided by the total time the trip takes
Average speed
This can be described as changes in speed or direction
acceleration
This is movement in relation to a frame of reference.
Relative motion
Distances are usually measured in these units.
meters
The acceleration due to gravity is this
9.8 m/s2
Velocity is a vector because it has this quality
a direction
vi + at =
Vf
This is the length of a path between two points.
Distance
If someone end a trip in the same place they start this is their displacement
zero
Objects free falling near the Earth undergo this type of acceleration
Constant
The slope of a line on a distance time graph shows this
speed
A speed time graph is an excellent example of this type of graph
linear
This is the direction from a starting point and the length of a straight line from the starting point to the ending point
Displacement
a book would be measured in these units
centimenters
If an object falls for 3 seconds it will have this velocity
29.4 m/s
Two or more velocities can be added together using this method
Vector addition
Non-linear graphs have lines that do this
curve
Displacements can be combined using this method.
Vector Addition
A spider walk up a wall for 2 meters, then 2 meters to the right, then two meters down. Its displacement is this.
2 meters to the right.
a free falling object usually starts with this velocity.
zero meters per second.
If an Olympic swimmer swims at a speed of 2 m/s for 23 seconds they will have traveled this far.
46 meters
A train moving from a stop to a speed of 25 m/s in 5 seconds has this acceleration.
5 m/s2