Distance-Time Graph Analysis

The video tutorial explains distance-time graphs, focusing on how the gradient of these graphs represents the speed of an object. It describes different types of graphs: horizontal lines indicate rest, straight lines indicate constant speed, and curved lines indicate acceleration or deceleration. The video provides examples, showing how to calculate speed and average speed using the gradient. It concludes with a call to action for viewers to engage with the content.

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

• The time taken by the object

• The distance traveled by the object

• The speed of the object

• The acceleration of the object

What does a horizontal line on a distance-time graph indicate?

• The object is decelerating

• The object is accelerating

• The object is at rest

• The object is moving at a constant speed

If a distance-time graph shows a straight line with a constant gradient, what does it mean?

• The object is accelerating

• The object is moving at a constant speed

• The object is decelerating

• The object is at rest

What does a curved graph with an increasing gradient indicate?

• The object is decelerating

• The object is moving at a constant speed

• The object is at rest

• The object is accelerating

Between points A and B on a distance-time graph, the gradient is increasing. What does this tell us about the object's motion?

• The object is accelerating

• The object is decelerating

• The object is moving at a constant speed

• The object is at rest

How do you calculate the constant speed between two points on a distance-time graph?

• By dividing the total distance by the total time

• By finding the difference in distance and dividing by the difference in time

• By adding the distance and time

• By subtracting the time from the distance

What does a decreasing gradient between points C and D on a distance-time graph indicate?

• The object is accelerating

• The object is moving at a constant speed

• The object is decelerating

• The object is at rest

What is the average speed if the total distance is 60 meters and the total time is 25 seconds?

• 2.4 meters per second

• 4 meters per second

• 6 meters per second

• 1.5 meters per second

What does a zero gradient between points D and E on a distance-time graph indicate?

• The object is accelerating

• The object is moving at a constant speed

• The object is decelerating

• The object is at rest