Mastering Speed-Time Graphs in Science and Mathematics

The video tutorial explains speed-time graphs and their application in calculating acceleration and distance. It uses a narrative involving Bob's journey to illustrate how to draw and interpret these graphs. The tutorial covers key concepts such as acceleration, deceleration, and the importance of understanding the difference between speed-time and distance-time graphs. It also demonstrates how to calculate acceleration and distance using the graph's gradient and area.

Which topic does the speed-time graph fall under for AQA science GCSE?

• P3

• P4

• P2

• P1

What is the average speed of Bob's journey calculated from?

• Speed multiplied by time

• Distance divided by time

• Time divided by distance

• Time multiplied by speed

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

• The object is accelerating

• The object is decelerating

• The object is moving at a constant speed

• The object is not moving

How does Bob's speed change when he accelerates using the NOS button?

• From 10 m/s to 15 m/s

• From 25 m/s to 30 m/s

• From 15 m/s to 20 m/s

• From 20 m/s to 25 m/s

What is Bob's acceleration when he speeds up from 15 m/s to 20 m/s in 5 seconds?

• 1 m/s²

• 2 m/s²

• 0.5 m/s²

• 3 m/s²

What does a negative acceleration indicate in Bob's journey?

• Bob is maintaining speed

• Bob is reversing

• Bob is speeding up

• Bob is slowing down

How is acceleration calculated from a speed-time graph?

• Time divided by change in speed

• Initial speed divided by time

• Change in speed divided by time

• Final speed divided by initial speed

What is the unit of acceleration?

• m²/s

• m/s²

• s/m

• m/s

How can the distance traveled be calculated from a speed-time graph?

• By finding the slope of the graph

• By calculating the area under the graph

• By counting the number of peaks in the graph

• By measuring the length of the graph

What shapes are used to calculate the area under a speed-time graph?

• Circles and squares

• Hexagons and pentagons

• Rectangles and triangles

• Trapezoids and ellipses