Graphing Motion – Chapter 11 – Quiz Questions #2

pp. 370 - 371 

1. What is an INDEPENDENT VARIABLE?
   
   
   
2. What is a DEPENDENT VARIABLE?
   
   
   
3. On a distance – time graph what is the “independent variable?”
   
   
   
4. For line graphs which axis do you use for distance, which axis for time?
   
   
   
5. If you have a distance – time graph of the speed of an automobile and it is NOT a straight line, what does that mean?
   
   
   
6. On a distance – time graph for a vehicle moving at a constant speed, describe the slope of the line if the car is moving …. a) very fast, b) parked and not moving, c) moving slowly
   
   
   
   
7. Imagine that you could ride a baseball that is hit hard enough for a home run. Using the concept of frame of reference, describe what is happening from these perspectives:  a) batter,  b) you sitting on top of the baseball, c) outfielder trying to catch the hit.
   
   
   
   
8. Look at the three distance (vs) time graphs on page 371. What is the average speed of each car:  a) Fast-moving car, b) Slow-moving car, c) Car with changing speed?
   
   
   
   
9. Look at the Distance Vs. Time graph on the bottom left-hand corner of page 370. Visually compare the red line with the blue line and green line. Calculate the slope of the red line.
   
   
   
   
10. Using the Distance Vs. Time graph on the bottom left-hand corner of page 370, list the relative speeds (fast, medium, slow) of the colored lines:  a) Red line, b) Green line, c) Blue line.