Distance-Time Graph Concepts

This video is the second in a series on distance-time graphs. It begins with a recap of the previous video, emphasizing that the slope of a distance-time graph represents average speed. The video explains how to interpret these graphs, showing that a steeper slope indicates a faster speed. It uses a journey example to illustrate how different stages of travel can be represented and analyzed. The video includes calculations to determine the speed of different journey segments, highlighting the importance of understanding changes in distance and time. It concludes with a review of key points and encourages viewers to practice with a linked worksheet.

What does the slope of a distance-time graph represent?

• The average speed

• The total distance traveled

• The time taken for the journey

• The direction of travel

Which line on the graph indicates the fastest journey?

• The green line

• The purple line

• The red line

• The blue line

How can a distance-time graph represent an entire journey?

• By displaying the total time taken

• By using different colors for different stages

• By indicating the direction of travel

• By showing only the start and end points

What is the speed of the first journey if 10 km is traveled in 1 hour?

• 10 km/h

• 20 km/h

• 15 km/h

• 5 km/h

Why is the line horizontal when the traveler stays at their friend's house?

• Because the distance is increasing

• Because the speed is constant

• Because the time is decreasing

• Because the speed is zero

How do you calculate the change in time for the return journey?

• By multiplying the start and end times

• By subtracting the start time from the end time

• By dividing the start time by the end time

• By adding the start and end times

What is the average speed of the return journey if 10 km is traveled in 0.2 hours?

• 20 km/h

• 50 km/h

• 30 km/h

• 40 km/h

Why is it important to check the numbers in your calculations?

• To confirm they make sense

• To make them smaller

• To ensure they are even

• To make them larger

What is one benefit of using distance-time graphs?

• They show only the fastest journey

• They illustrate an entire journey

• They display the total distance

• They indicate the direction of travel

Where can you find additional exercises to practice distance-time graphs?

• In the video comments

• In the video description

• In the video title

• In the video thumbnail