IGCSE Physics Revision Notes Motion

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IGCSE-Physics-Revision-Notes-Motion

CORE OBJECTIVES:

Define speed as distance travelled per unit time; recall and use the equation for velocity
Define velocity as speed in a given direction
Recall and use the equation for average speed
Sketch, plot and interpret distance–time and speed–time graphs
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
Calculate speed from the gradient of a straightline section of a distance–time graph
Calculate the area under a speed–time graph to determine the distance travelled for motion with constant speed or constant acceleration
State that the acceleration of free fall g for an object near to the surface of the Earth is approximately constant and is approximately 9.8m/s

EXTENDED SUPPLEMENT OBJECTIVES:

Define acceleration as change in velocity per unit time; recall and use the equation a = Change in velocity/Change in time
Determine from given data or the shape of a speed–time graph when an object is moving with:
(a) constant acceleration
(b) changing acceleration
Calculate acceleration from the gradient of a speed–time graph
Know that a deceleration is a negative acceleration and use this in calculations
Describe the motion of objects falling in a uniform gravitational field with and without air/ liquid resistance (including reference to terminal velocity)

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