Bicycle Journey Speed and Distance

The video tutorial explains how to interpret and analyze distance-time graphs through two exam questions. The first question involves Gianna's journey to work, where the concepts of distance, time, and speed are explored. The second question focuses on a bicycle journey, emphasizing the calculation of speed and the interpretation of graph gradients. The tutorial also introduces a triangle method to calculate speed, distance, and time, providing a practical approach to solving related problems.

What is the main difference between a distance-time graph and a speed-time graph?

• Distance-time graph shows distance on the y-axis.

• Speed-time graph shows distance on the x-axis.

• Distance-time graph shows speed on the y-axis.

• Speed-time graph shows time on the y-axis.

At what time did Gianna leave her home according to the graph?

• 7:00 AM

• 6:00 AM

• 8:00 AM

• 9:00 AM

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

• The person is decelerating.

• The person is stationary.

• The person is moving at a constant speed.

• The person is accelerating.

How far did Gianna travel to work?

• 15 km

• 17.5 km

• 20 km

• 25 km

What is the formula to calculate speed using distance and time?

• Speed = Distance + Time

• Speed = Time / Distance

• Speed = Distance / Time

• Speed = Distance x Time

What was Gianna's average speed during her journey to work?

• 10 km/h

• 9.5 km/h

• 8.75 km/h

• 7.5 km/h

What does the steepest line on a distance-time graph represent?

• A constant speed

• A stationary period

• The fastest speed

• The slowest speed

In the bicycle journey, which section had the fastest speed?

• Section C

• Section B

• Section D

• Section A

How do you convert minutes into hours for speed calculations?

• Divide by 60

• Subtract 60

• Add 60

• Multiply by 60

What is the distance traveled by the bicycle in 15 minutes at a speed of 20 km/h?

• 10 km

• 7 km

• 5 km

• 3 km