-- Core --

✔

Define speed as distance travelled per unit time; recall and use the equation v = s/t.

Define velocity as speed in a given direction.

Recall and use the equation: average speed = total distance travelled / total time taken.

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 straight-line 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 9.8 m/s².

-- Extended --

✔

Define acceleration as change in velocity per unit time; recall and use the equation a = Δv/Δt.

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