Motion
Core concepts and learning points for this section:
Syllabus Points
Core
- 1.2.1 Define speed as distance travelled per unit time; recall and use the equation s v = t
- 1.2.2 Define velocity as speed in a given direction
- 1.2.3 Recall and use the equation total distance travelled average speed = total time taken
- 1.2.4 Sketch, plot and interpret distance–time and speed–time graphs
- 1.2.5 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) decelerating
- 1.2.6 Calculate speed from the gradient of a straight- line section of a distance–time graph
- 1.2.7 Calculate the area under a speed–time graph to determine the distance travelled for motion with constant speed or constant acceleration
- 1.2.8 State that the acceleration of free fall g for an object near to the surface of the Earth is approximately constant and is approximately 2
Supplement
- 1.2.9 Define acceleration as change in velocity per unit time; recall and use the equation ∆ v a = ∆ t
- 1.2.10 Determine from given data or the shape of a speed–time graph when an object is moving with: (a) constant acceleration (b) changing acceleration
- 1.2.11 Calculate acceleration from the gradient of a speed–time graph
- 1.2.12 Know that a deceleration is a negative acceleration and use this in calculations
- 1.2.13 Describe the motion of objects falling in a uniform gravitational field with and without air/ liquid resistance, including reference to terminal