STEMscopedia: Distance-Time Graphs

How is speed calculated using a distance-time graph? Divide the object’s time in motion by the distance covered in that time Multiply the object’s time by the distance it covered in that time. Divide the object’s distance covered by the time it takes to cover that distance. Multiply the distance the object moved by the mass of the object. How do distance-time graphs show the motion of objects? The y-axis is used for plotting the object’s time, and the x-axis is used for plotting distance. Only the x-axis is used for plotting motion; the y-axis shows the size of the object. The y-axis is used for plotting the object’s distance, and the x-axis is used for plotting time. Only the y-axis is used for plotting motion; the x-axis shows the size of the object If an object is in motion at a constant speed, what does the line look like on a distance-time graph? It looks like a wavy line. It is usually more vertical in appearance than the line of an object at rest. It appears as a straight, horizontal line. It looks like a diagonal line that does not change its slope. Phil is racing around the racetrack shown in the image. He is traveling northwest at 15 miles per hour (mph). He needs to slow down to make a sharp left turn. What is Phil’s new velocity after he makes the turn? 10 mph northwest 10 mph southwest 15 mph northwest 15 mph southwest The Valdez family traveled from New York City to Washington, DC. They left at 12:00 p.m., traveled 95 miles, and stopped to eat in Philadelphia. They continued driving another 135 miles and arrived in Washington, DC, at 5:00pm.What was the family’s average speed? 19 mph 27 mph 46 mph 230 mph A student is driving her car to college in the fall. It takes 7.5 hours to travel a distance of 338 miles. What is the average speed of the car? Round to the nearest whole number. 60 mph 45 mph 55 mph 50 mph How far did the bicyclist travel from 9:00 to 12:00? 40 km 120 km 0 km 60 km Three objects are thrown and their speeds are graphed. Which of the following answer choices correctly labels Object A's path? Getting faster Fast, constant speed Constant speed, at rest, return to start No motion During which interval is the object decreasing its speed? C to D F to G E to F A to B An airplane travels 260 km in the air in 60 minutes. Which distance-time graph below correctly shows the motion of the airplane? Describe the distance-time graph of a dog that runs quickly, stops to smell the grass, and then runs slowly. How would the distance-time graph look different if the dog was taking a nap instead? Answer in complete sentences using RACE.