Understanding Distance-Time Graphs

This video tutorial explains distance-time graphs, using Sam's cycling journey as an example. It covers how to interpret graph lines, calculate speed using gradients, and understand the significance of curved lines for acceleration and deceleration. The video 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 and sister's houses?

• 16 kilometers

• 10 kilometers

• 22 kilometers

• 6 kilometers

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

• Acceleration

• No movement

• Constant speed

• Changing speed

How is speed calculated from a distance-time graph?

• By measuring the distance

• By measuring the time

• By finding the gradient

• By counting the number of lines

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

• 10 km/h

• 20 km/h

• 15 km/h

• 25 km/h

What does a flat line on a distance-time graph represent?

• Constant speed

• Acceleration

• No movement

• Deceleration

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

• 10 km/h

• 20 km/h

• 16 km/h

• 12 km/h

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

• Constant speed

• No movement

• Faster speed

• Slower speed

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

• Constant acceleration

• No movement

• Changing speed

• Constant speed

What does a curve flattening off on a graph indicate?

• Constant speed

• Deceleration

• No movement

• Acceleration

If a line is in the negative direction, what does it indicate?

• Acceleration

• Moving away from home

• Returning home

• Constant speed