This graph shows a moving object moving further away from its origin
This graph shows how the slope of a line is used to interpret the speed of moving objects. Both of these objects are moving with a constant speed, because the lines are straight.
Changing speeds are represented by changing slopes. The red line represents an object slowing down and the green line represents an object speeding up.
The speed of an object can be found by calculating the gradient of a distance-time graph
A distance-time graph is drawn below for part of a train journey. The train is travelling at a constant speed.Calculate the speed of the train.
Step 1: Draw a large gradient triangle on the graph and label the magnitude of the rise and run
Step 2: Convert units for distance and time into standard units
Step 3: State that speed is equal to the gradient of a distance-time graph
Step 4: Substitute values in to calculate the speed
speed = gradient = 8000 ÷ 360
speed = 22.2 m/s
Ose decides to take a stroll to the park. He finds a bench in a quiet spot and takes a seat, picking up where he left off reading his book on Black Holes.After some time reading, Ose realises he lost track of time and runs home.A distance-time graph for his trip is drawn below:a) How long does Ose spend reading his book?There are three sections labelled on the graph: A, B and C.b) Which section represents Ose running home?
c) What is the total distance travelled by Ose?