Describing Motion
The state in which an objects distance to another is changing.
motion
This is a push or a pull on an object.
Force
This is the distance an object travels in a given unit of time.
Speed
A motorcycle travels at 300 kilometers in 3 hours. This is his average speed in kilometers/hour.
100 km/hr
An accelerating object can do any of these three things.
Slow down
Speed up
Change direction
A place or object used for comparison to determine if an object is in motion.
reference point
This is the overall force on an object when all forces are added together.
Net force
This is the overall rate of speed an object travels.
Average Speed
On a distance-versus-time graph, this determines the speed of a moving object.
Slope
This is how far an object travels per unit of time.
Speed of an object
The length of the path between two points.
Distance
This is the force that two surfaces exert on an object when they rub against each other.
Friction
This is the speed of an object at any given point in time.
Instantaneous Speed
True or false. On a distance-versus-time graph, it is possible for a vertical line.
False
This was the little critter Mrs. Barron found in her pantry when getting sugar and creamer for her coffee.
Translucent baby gecko
Let's say you are riding on a bus down the street on the way home from school. This would be a good reference point.
Tree or building
This is the attractive force between two objects.
Gravity
This is the speed in a given direction.
Velocity
The rise of a line on a distance-versus-time graph is 600 meters and the run is 2 minutes. This is the slope, expressed in meters/minutes.
300 meters/minute
This is what Mrs. Barron had for lunch on this past Wednesday.
Cheese Pizza
This is the equation to determine the speed of an object.
s=d/t
If an unbalanced force is added to an object moving in the SAME direction, speed will do this.
Increase
The RATE at which velocity changes.
Acceleration
These three things determine the motion of an object.
Distance traveled, velocity and acceleration
Two objects are moving in a straight line.
Object A is moving 100 m/2 sec.
Object B is moving 50 m/5 sec.
40 m/sec