Scientific Method
a set of steps scientists use to learn new things and solve problems.
Dimensional Analysis
a way to change one unit of measurement to another.
Independent Variable
the one the scientist changes on purpose during an experiment. It is placed on the x-axis of a graph.
Dependent Variable
what the scientist measures or studies.; Distance: The distance traveled from one place to another.
Displacement
The straight-line distance from one place to another, including the direction from the first spot to the second spot.
Instantaneous speed
The speed at a certain moment, like the number you see on a speedometer in a car.
Average speed
The total distance traveled divided by the total time it took to travel.
Velocity
How fast something is moving and the direction it is moving.; Instantaneous
Speed
The speed at one moment in time. It is what you see on a speedometer.
Impulse
The change in momentum when a force is applied over time.
acceleration
is how fast velocity changes. You find it by dividing the change in velocity by the change in time.;
Momentum
how much motion something has. It depends on how fast it is moving and how big it is.