| A | B |
|---|
| In a Speed vs Distance graph, which one is the dependent variable? | Speed |
| In a Speed vs Distance graph, which one is the independent variable? | Distance |
| Does the dependent variable go on the X or Y axis? | Y |
| Does the independent variable go on the X or Y axis? | X |
| How do you find the speed or velocity of an object | Divide the Distance by the Time |
| Why are graphs useful? | They allow us to make predictions |
| What is the slope on a distance vs time graph? | It is the ratio of rise to run |
| What does a steep slope tell you on a distence vs time graph? | The speed is greater |
| What is the AVERAGE speed? | The TOTAL distance divided by the TOTAL time |
| What is INSTANTANEOUS speed? | The speed at a given point in your journey |
| What is acceleration? | The rate at which speed changes? |
| How do you find the acceleration? | Take the final speed - the initial speed and divide it by the time |
| How can you tell if there is a STRONG relationship between variables on a graph? | The X axis increases very little and the Y axis increases more. It is a steep slope. |
| How can you tell if there is NO relationship between variables on a graph? | The plotted points are scattered and the variables do not impact one another. |
| How can you tell if there is a WEAK relationship between variables on a graph? | The X axis increases more than the Y axis. The slope is not steep. |
| How can you tell if there is an INVERSE relationship between variables on a graph? | The slope is downward or negative. |
| When constructing a graph, what does the y-axis represent? | The dependent variable |
| When constructing a graph, what does the x-axis represent? | The independent variable |
| How do you determine the speed from a Speed vs. Distance graph? | Find the distance along the bottom and follow it up to the line on the graph and over to the speed. |
| How do you calculate the speed from a position vs. time graph? | Rise divided by run |
| What is the slope of a position vs time graph equal to? | Speed |
| What is the slope of a speed vs. time graph equal to? | Acceleration |
| What does a steep slope indicate about the speed? | The speed is fast |
| What 2 things can change in order to have acceleration? | velocity and/or direction |
| A skier accelerates from 10m/s to 40m/s in 3 sec. What is his acceleration? | 10 m/s/s |
| On a speed vs. time graph, what is happening if the line is going up? | it is speeding up (accelerating) |
| On a speed vs. time graph, what is happening if the line is flat? | There is zero acceleration which means you are going at a constant speed. |
| On a speed vs. time graph, what is happening if the line is going down? | You are slowing down (deceleration) |
| Dependent Variable | The variable on the Y-axis |
| Independent Variable | The Variable on the X-axis |
| Slope | Rise/Run |
| Speed | Distance divided by time |
| Acceleration | A change in speed (velocity) or direction |
| Deceleration | A change in speed in a negative direction |
| Instantaneous speed | The speed at a given point in time (at that moment) |
| Average speed | The TOTAL distance divided by the TOTAL time |
| Model | A discription or visual representation of how variables are related |
| What is displacement? | How far away something is from its original position |
