Test your knowledge with free interactive questions on Seneca — used by over 10 million students.

Distance-Time Graphs

Distance-time graphs plot the distance travelled against the time. The gradient of a distance-time graph represents the speed (velocity) and direction of movement.

Gradient

Gradient

  • Steeper gradients mean faster speed and a negative gradient means the object is travelling back towards the start.
  • If the graph is flat the object is stationary.
Calculating speed

Calculating speed

  • To calculate the speed from a distance-time graph, work out the distance travelled and the time taken for that section and calculate:
    • Speed = distance ÷ time

Velocity-Time Graphs

Velocity-time graphs plot the velocity against the time.

Velocity

Velocity

  • Velocity is speed measured in a particular direction.
  • Two objects travelling in opposite directions at a speed of 10km/h would have velocities of 10km/h and -10km/h.
Gradient and area

Gradient and area

  • The gradient in a velocity-time graph represents acceleration.
  • The area under the graph is the total distance travelled.
  • When the graph is flat the velocity is constant.
  • Steeper gradients mean stronger acceleration and negative slopes mean deceleration.

Conversion Graphs

Straight line graphs can be used to convert between different units of measurement.

Drawing conversion graphs

Drawing conversion graphs

  • Conversion graphs can be constructed from tables of two different units of the same measurement.
  • The table above shows several distances measured in miles and the same distance measured in kilometres.
Drawing conversion graphs 2

Drawing conversion graphs 2

  • To draw the conversion graph for kilometres-miles, plot these values on a graph.
  • Draw a straight line from the origin that connects all of the points.
Using conversion graphs

Using conversion graphs

  • To use the conversion graph, draw a line from the value you want to convert to the conversion line.
  • Converting 7 miles gives approximately 11 km and vice versa.
Jump to other topics
1

Numbers

2

Equations, Formulae & Identities

3

Sequences, Functions & Graphs

4

Geometry

5

Vectors & Transformation Geometry

6

Statistics & Probability

Practice questions on Practical Graphs

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
Answer all questions on Practical Graphs

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium