Physics/chem review

Using this graph, please calculate the slope between the following points on the graph Position vs. Time 3. Write an equation for the line (in the form of y = mx+b, but use the variables in the graph). What position would you expect at 10 hours? 5. (5s, 400 m) and (0s, 0m) 3500 3000 6. (20s, 1500m) and (15s, 1000 m) 2500 More Graphing Practice - Complete the following graph analysis. Position (m) 2000 7. (30s, 3000m) and (25s, 2100m) 1500 1000 100 8. What observation can you make about the 500 slope of this line? 0 5 10 15 20 25 30 35 Time (s) Distance (m) Swimmer ! Practice: Use the situation and the data provided to create a graph and answer the 40 questions. Swimmer 2 A car was designed so that each time one liter of gasoline was used, a light would flash on and the driver would then read the number of kilometers traveled. The data is given below. Make a graph and answer the questions about the graph. The completed graph should include the following: a labeled x and y-axis with appropriate units, a title, an appropriate scale, plotted 10 20 30 40 points, and a line of best fit. Time (sec) Time (Hours) Position (Km) 1. How many meters can Swimmer 1 cover in 30 sec? (at what distance is Swimmer 1 at 30 seconds?) N CO 2. How far will Swimmer 2 go in 30 sec? (at what distance is Swimmer 2 at 30 seconds?) N m + in 3. Calculate the speed of Swimmer 1. (what is the slope of the line for Swimmer 1?) 4. Calculate the speed of Swimmer 2. (what is the slope of the line for Swimmer 2?) 1. Calculate the slope of the line and include units. What does the slope represent? (Hint: remember that the slope if a ratio of 5 . Which swimmer has the greatest speed? the rate of change. So, what do you think the change of position over a change in time is equal to?) For Q6 and 7, use the equation for a linear line, y = mx+b, substitute distance for y and time for x. The swimmers begin at 0,0 so there is NO y intercept. Make sure to include units in the equation. 2 . What position would be expected at 1.5 hours ? 6. Predict the distance (in meters) Swimmer 1 can swim in 120 sec. 7. Predict the distance ( in meters) Swimmer 2 can swim in 120 sec