Speed-Time Graph Concepts

The video tutorial covers speed-time graphs, explaining the axes and different line types. It discusses how to interpret diagonal, horizontal, and curved lines, and how they relate to speed and acceleration. The tutorial also explains how to calculate acceleration and distance using these graphs, emphasizing the importance of understanding graph areas and line gradients.

What does a diagonal line on a speed-time graph indicate?

• Changing acceleration

• Steady increase in speed

• Constant speed

• Steady decrease in speed

What does a horizontal line on a speed-time graph represent?

• Changing acceleration

• Increasing speed

• Decreasing speed

• Constant speed

What does a curved line on a speed-time graph suggest?

• Constant speed

• Changing acceleration

• Constant acceleration

• Steady increase in speed

In a complex speed-time graph, what does a steeper slope indicate?

• Lower acceleration

• Decreasing speed

• Greater acceleration

• Constant speed

How do you calculate acceleration from a speed-time graph?

• Area under the graph

• Slope of the line

• Speed change divided by time

• Time divided by speed change

If a car's speed changes from 0 to 30 m/s in 25 seconds, what is its acceleration?

• 1.5 m/s²

• 1.2 m/s²

• 2.0 m/s²

• 0.8 m/s²

What is the method to calculate the distance traveled using a speed-time graph?

• Dividing speed by time

• Multiplying speed by time

• Calculating the area under the graph

• Finding the slope of the graph

How do you calculate the area of a rectangle on a speed-time graph?

• Base times height times half

• Base times height

• Length times height times half

• Length times height

What is the area of a triangle with a base of 10 seconds and a height of 7 m/s?

• 21 m

• 70 m

• 35 m

• 140 m

What is the total distance traveled if the areas under the graph are 35 m, 140 m, and 70 m?

• 175 m

• 210 m

• 280 m

• 245 m