Understanding Distance-Time Graphs

The video tutorial explains how to interpret and use distance-time graphs. It uses Sam's cycling journey as an example to illustrate how different graph lines represent speed and direction. The tutorial covers calculating speed from graph gradients and understanding the significance of curved lines for acceleration and deceleration. It concludes with a call to action for viewers to engage with the content.

What is the total distance Sam travels from his house to his cousin's house?

• 15 kilometers

• 20 kilometers

• 10 kilometers

• 5 kilometers

What does a flat line on a distance-time graph indicate about Sam's movement?

• He is accelerating

• He is moving at a constant speed

• He is stationary

• He is decelerating

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

• Multiply distance by time

• Subtract time from distance

• Divide distance by time

• Add distance and time

What is the speed of Sam between points A and B?

• 25 km/h

• 20 km/h

• 15 km/h

• 10 km/h

What is the speed of Sam between points C and D?

• 6 km/h

• 12 km/h

• 18 km/h

• 24 km/h

What does a steeper gradient on a distance-time graph indicate?

• Slower speed

• Faster speed

• Constant speed

• No movement

What does a negative gradient on a distance-time graph signify?

• Moving away from home

• Moving towards home

• Stationary

• Accelerating

What is Sam's speed when he returns home?

• 10 km/h

• 16 km/h

• 20 km/h

• 24 km/h

What does an upward curve on a distance-time graph represent?

• Stationary

• Constant speed

• Acceleration

• Deceleration

What does a flattening curve on a distance-time graph indicate?

• Constant speed

• Acceleration

• Deceleration

• Stationary