What you’ll learn13 learning objectivesChoose one objective for a focused lesson, or study the complete topic.1.2.1Speed as distance travelled per unit• Define speed as distance travelled per unit time; recall/use: v = s/tSyllabus objective1.2.2Velocity as speed in a given direction• Define velocity as speed in a given directionSyllabus objective1.2.3Recall/use: average speed = total• Recall/use: average speed = total distance travelled / total time takenSyllabus objective1.2.4Distance–time and speed–time graphs• Sketch, plot and interpret distance–time and speed–time graphsSyllabus objective1.2.5From given data or the shape of a• Determine qualitatively from given data or the shape of a distance–time graph or speed–time graph when an object is: (a) at rest (b) moving with constant speed (c) accelerating (d) deceleratingSyllabus objective1.2.6Speed from the gradient of a• Calculate speed from the gradient of a straight-line section of a distance–time graphSyllabus objective1.2.7Area under a speed–time graph to• Calculate the area under a speed–time graph to determine the distance travelled for motion with constant speed or constant accelerationSyllabus objective1.2.8Acceleration of free fall g for an• State: the acceleration of free fall g for an object near to the surface of the Earth is approximately constant, about 9.8 m/s²Syllabus objective1.2.9Acceleration as change in velocity per• Define acceleration as change in velocity per unit time; recall/use: a = Δv/ΔtSyllabus objective1.2.10From given data or the shape of a• Determine from given data or the shape of a speed–time graph when an object is moving with: (a) constant acceleration (b) changing accelerationSyllabus objective1.2.11Acceleration from the gradient of a• Calculate acceleration from the gradient of a speed–time graphSyllabus objective1.2.12A deceleration is a negative• Know: a deceleration is a negative acceleration and use this in calculationsSyllabus objective1.2.13Motion of objects falling in a uniform• Describe the motion of objects falling in a uniform gravitational field with and without air/liquid resistance, including reference to terminal velocitySyllabus objective